Energy storage deicing system for roads and bridges and installation method of energy storage deicing system

Abstract

The invention discloses an energy storage deicing system for roads and bridges and an installation method thereof, and the system comprises an energy storage module which stores energy through a flow battery and comprises an electrolyte arranged underground; and the heat exchange module comprises an underground heat exchange pipeline arranged in the electrolyte and a road surface heat exchange part arranged below the road and the bridge, and the underground heat exchange pipeline provides heat for the road surface heat exchange part. The heat for deicing comes from the heat of the underground rock-soil body, the heat released by the charge-discharge reaction of the flow battery and the heat energy prepared by consuming the electric energy stored by the energy storage module, the functions of energy storage and deicing can be achieved, and the low-carbon and environment-friendly effects and the remarkable energy-saving effect are achieved.

Description

Technical Field

[0001] The present invention relates to the field of integration of transportation and energy, and more particularly to an energy storage deicing system for road and bridge and its installation method. Background Art

[0002] In winter, snow and ice on the bridge deck and road surface are likely to cause traffic accidents. In order to maintain normal traffic order, it is necessary to remove snow and ice in a timely and effective manner.

[0003] Currently, the commonly used methods are mainly divided into two categories: passive snow melting and deicing technology and active snow melting technology. Among them, the passive snow melting and deicing technology mainly includes manual removal method, mechanical removal method and chemical snow melting method. These methods have been widely used in the road snow melting and deicing projects in China, but there are problems such as damage to the road (bridge) surface, lack of low-carbon environmental protection, high cost, and usage condition limitations. The technology of preventing road surface icing based on geothermal pipe method has advantages such as low-carbon, green, safe and economical. The geothermal pipe method extracts the heat energy of underground rock and soil mass or water body to achieve road surface anti-icing, but there are also some problems and challenges:

[0004] 1. High initial investment: Compared with traditional deicing methods, the installation cost of buried heat exchange pipes is relatively high. A large amount of underground engineering is required, including excavation, installation of pipes and restoration of the road surface.

[0005] 2. Efficiency problem: Under certain climatic conditions, the deicing effect of buried heat exchange pipes may not meet expectations. For example, in continuous low-temperature and heavy snow weather, the underground temperature may not be sufficient to quickly melt the snow.

[0006] 3. Energy consumption: If the buried heat exchange pipe system requires additional energy to improve efficiency, then the energy consumption and carbon emissions of this technology may increase.

[0007] By integrating geothermal pipes into the pile foundation system of the bridge, the additional excavation and land use costs required for installing a traditional ground source heat pump system can be saved, achieving the purpose of significantly reducing the initial investment. However, this method is still not sufficient to solve the efficiency problem and energy consumption problem. In particular, when additional non-green electric energy is used to heat the road surface, the carbon emissions and operating costs will be further increased.

[0008] Therefore, there is still a lack of an energy-saving, environmental protection and economical deicing system in this field. Summary of the Invention

[0009] The purpose of the present invention is to provide an energy storage deicing system for road and bridge and its installation method. The heat used for deicing in the present invention comes from the heat of underground rock and soil mass, the heat released by the charge and discharge reaction of the flow battery, and the heat energy generated by consuming the electric energy stored in the energy storage module of green energy sources such as photovoltaic and wind turbine units, which can realize the functions of energy storage and deicing, with significant low-carbon environmental protection and energy-saving effects.

[0010] In the first aspect of the present invention, an energy storage deicing system for road and bridge is provided, the system comprising: an energy storage module which stores energy through a flow battery and includes an electrolyte disposed underground; and a heat exchange module which includes an underground heat exchange pipeline disposed in the electrolyte and a road surface heat exchange portion disposed under the road and bridge, wherein the underground heat exchange pipeline provides heat for the road surface heat exchange portion.

[0011] In another preferred example, through the electrolyte as a medium, the underground heat exchange pipeline absorbs the heat generated in the flow battery reaction and the heat underground (such as the heat in the soil).

[0012] In another preferred example, the electrolyte is disposed in an underground foundation.

[0013] In another preferred example, the electrolyte is disposed in a cavity of the underground foundation.

[0014] In another preferred example, the underground foundation is a pile.

[0015] In another preferred example, the pile includes a positive pole pile and a negative pole pile.

[0016] In another preferred example, the electrolyte is divided into a positive pole electrolyte and a negative pole electrolyte, the positive pole electrolyte is accommodated in the positive pole pile, and the negative pole electrolyte is accommodated in the negative pole pile.

[0017] In another preferred example, the depth of the positions of the positive pole pile and the negative pole pile from the ground surface is 10 - 150 m; preferably, 20 - 80 m; more preferably, 30 - 60 m.

[0018] In another preferred example, the diameter of the positive pole pile or the negative pole pile is greater than 600 mm; preferably, greater than 800 mm; more preferably, greater than 1000 mm; the inner wall has corrosion resistance, and the bearing capacity is above 1200 tons; preferably, above 1500 tons; more preferably, above 1700 tons.

[0019] Except that the inner walls of the positive pole pile and the negative pole pile are set to be corrosion-resistant, the heat exchange pipes, pipelines, flange plates between piles, etc. buried in the piles are also set to be corrosion-resistant, that is, the surfaces of the equipment in contact with the electrolyte are all set to be corrosion-resistant to extend the service life and prevent leakage and pollution. The corrosion resistance can be achieved by manufacturing these components and pipelines with corrosion-resistant materials (such as titanium or its alloys, polyethylene (PE) and polypropylene (PP), polyvinylidene fluoride (PVDF), ethylene propylene rubber (EPDM), fluororubber (such as Viton), etc.), and / or coating the surfaces in contact with the electrolyte with corrosion-resistant coatings (such as epoxy resin, polyurethane, and polyethylene coatings, etc.).

[0020] In another preferred example, the charge and discharge reaction of the energy storage module is as follows:

[0021]

[0022] In another preferred example, the positive electrolyte in the positive electrode pile and the negative electrolyte in the negative electrode pile are respectively transported to the fuel cell stack through the electrolyte transport unit for reaction.

[0023] In another preferred example, the electrolyte transport unit connects one or more of the positive electrode piles to the fuel cell stack through an electrolyte transport pipeline, and connects one or more of the negative electrode piles to the fuel cell stack through an electrolyte transport pipeline, and uses a circulation pump to circulate the positive electrolyte in the positive electrode pile and the fuel cell stack, and circulate the negative electrolyte in the negative electrode pile and the fuel cell stack, so as to store and release electrical energy.

[0024] In another preferred example, the electrolyte transport unit further includes a replenishing device, and the replenishing device is used to replenish or withdraw the electrolyte.

[0025] In another preferred example, the electrolyte transport unit further includes a replenishing device, and the replenishing device is used to replenish the electrolyte when the electrolyte decreases due to volatilization or other reasons, or when the power generation needs to be increased, etc.; and withdraw the electrolyte when the electrolyte leaks, the pile needs to be repaired, or the power generation decreases, etc.

[0026] In another preferred example, the replenishing device includes a spare tank, and the spare tank is used to store the electrolyte.

[0027] In another preferred example, the electrolyte transport unit further includes a monitoring device, and the monitoring device is used to monitor the flow rate of the electrolyte. Preferably, an alarm is issued when the change in the flow rate of the electrolyte exceeds the normal volatilization threshold (for example, the normal volatilization threshold is that the leakage rate is less than 0.5% in 180 hours under a water pressure of 1 MPa).

[0028] In another preferred example, the fuel cell stack is externally connected to the electrical energy on the power supply side and the load on the user side through the inverter.

[0029] In another preferred example, the electrical energy on the power supply side includes: electrical energy provided by the power grid, photovoltaic, and wind power.

[0030] In another preferred example, the positive electrode pile or the negative electrode pile includes a precast pipe pile, a pile shoe, a bottom seal body, and a top cover plate.

[0031] In another preferred example, the precast pipe pile includes a grouting conduit embedded in the inner wall, a slurry outlet provided at the bottom, a grouting port provided on the side wall, and a head connecting the grouting conduit, the grouting port and the slurry outlet.

[0032] In another preferred example, the top cover plate has anti-corrosion properties.

[0033] In another preferred example, the top cover plate is provided with holes through which the electrolyte delivery pipe and the heat transfer medium delivery pipe can pass.

[0034] In another preferred example, the main body of each heat transfer medium delivery pipe is buried in the positive pile or the negative pile, including: after passing through the top cover plate, the heat transfer medium delivery pipe is arranged inside the precast pipe pile.

[0035] In another preferred example, the underground heat exchange pipe absorbs the heat in the positive pile or the negative pile (i.e., the heat stored in the electrolyte).

[0036] In another preferred example, the underground heat exchange pipe exchanges heat with the heat in the road surface heat exchange part through a heat exchange unit.

[0037] In another preferred example, the heat exchange unit includes a compressor, an evaporator, a condenser, an expansion valve and a pipeline system.

[0038] In another preferred example, the heat exchange module further includes an electric heating part, and the electric heating part provides heat to the road surface heat exchange part by generating heat through the electric energy generated by the flow battery or the electric energy supplied by other external power sources.

[0039] In another preferred example, the heat exchange module further includes an electric heating part, and the electric heating part generates heat by heating an electric heating device (such as a resistance wire, etc.) with the electric energy generated by the flow battery or the electric energy supplied by other external power sources.

[0040] In another preferred example, when the heat provided by the underground heat exchange pipe is not sufficient to de-ice the road surface or the efficiency of road surface de-icing is relatively low, the electric heating part provides an auxiliary heat source. In another preferred example, the main body of each underground heat exchange pipe is buried in the positive pile or the negative pile, and both ends are respectively joined to both sides of the heat exchange unit through a valve system, and a circulation pump is used to make the heat transfer medium circulate in the heat transfer medium delivery pipe to realize the heat exchange between the heat in the positive pile or the negative pile and the heat in the heat exchange unit.

[0041] In another preferred example, the valve system includes a two-way valve, a three-way valve, a four-way valve, etc.

[0042] In another preferred example, the heat transfer medium delivery unit includes the heat transfer medium delivery pipeline and the circulation pump.

[0043] In another preferred example, the road surface heat exchange part includes heat exchange pipes laid under the road surface, a heat conduction layer in contact with the upper surface of the heat exchange pipes, and a heat preservation and insulation layer in contact with the lower surface of the heat exchange pipes.

[0044] In another preferred example, the road surface heat exchange part further includes a temperature-stress sensor.

[0045] In another preferred example, the heat exchange fluid in the heat exchange pipes laid under the road surface absorbs heat through the heat exchange unit, and releases the absorbed heat to the frozen road surface for deicing.

[0046] In another preferred example, the heat exchange pipes laid under the road surface include a shaped phase change heat storage material filled around the heat exchange pipes.

[0047] In another preferred example, the material of the heat conduction layer in contact with the upper surface of the heat exchange pipes includes: a cementitious material containing calcium carbonate, or a solidified body formed by microbial-induced calcium carbonate precipitation.

[0048] In another preferred example, the material of the heat preservation and insulation layer in contact with the lower surface of the heat exchange pipes includes: a cementitious material obtained from solid waste containing silicon and aluminum under excitation conditions.

[0049] In another preferred example, the electrolyte delivery unit includes an auxiliary heat exchange device provided on the electrolyte delivery pipeline, and the auxiliary heat exchange device can exchange the heat in the stack with the heat on the user side through the auxiliary heat exchange device.

[0050] In another preferred example, the system includes an integrated control unit, which controls both the charge and discharge of the stack and the heat exchange between the heat in the positive electrode pile or the negative electrode pile and the heat in the road surface heat exchange part.

[0051] In another preferred example, the integrated control unit includes a control panel, sensors, a controller, and meters.

[0052] In another preferred example, the integrated control unit can intelligently control the charge and discharge and deicing functions according to long-term operation data.

[0053] In the second aspect of the present invention, an installation method of the energy storage deicing system for road and bridge as described above is provided, and the method includes the following steps:

[0054] (1) Install the positive electrode pile and the negative electrode pile underground, where the positive electrode pile and the negative electrode pile are not capped;

[0055] (2) Arrange the underground heat exchange pipes inside the positive pile and the negative pile;

[0056] (3) Inject the electrolyte inside the positive pile and the negative pile;

[0057] (4) Seal the top of the positive pile and the negative pile; and

[0058] (5) Lay the road surface heat exchange part.

[0059] In another preferred example, more specifically, the method includes the following steps:

[0060] S1. Manufacture of precast pipe piles;

[0061] S2. Construction of the lower foundation structure:

[0062] S2.1. Drilling - pile sinking;

[0063] S2.2. Pile splicing;

[0064] S2.3. Repeat S2.1 and S2.2 until the pile length reaches the designed length or the pile tip effectively embeds into the designed stratum;

[0065] S2.4. Silt cleaning and bottom sealing;

[0066] S2.5. Repeat S2.1 to S2.4 until all pile foundation construction is completed;

[0067] S2.6. Sealing test and pile body inspection;

[0068] S2.7. Arrange the underground heat exchange pipes inside the pile;

[0069] S2.8. Inject the electrolyte inside the pile;

[0070] S2.9. Install the top cover plate;

[0071] S3. Construction of the upper structure of the pile foundation;

[0072] S4. Construction of the road surface heat exchange part;

[0073] S5. Install the electrolyte delivery unit, the fuel cell stack, and the inverter;

[0074] S13. Connect each device to the integrated control unit;

[0075] S14. Commissioning;

[0076] S15. Operation.

[0077] In another preferred example, for the S1. Manufacture of precast pipe piles, it includes: while prefabricating the pipe piles in the factory, embed the grouting pipes in the pipe wall of the pipe piles; conduct anti - corrosion treatment on the inner wall of the pipe piles.

[0078] In another preferred example, the grouting pipe includes an aluminum-plastic pipe with an inner diameter of 20 mm and a wall thickness of 4 mm.

[0079] In another preferred example, the S2.1. Drilling - Pile Sinking includes: connecting an expandable - contractible drill bit to a long - flight auger and entering the formation where the pile is to be sunk through the inner cavity of a large - diameter pipe pile; driving the drill pipe to drill a hole, and under the action of soil pressure, the drill bit expands to make the diameter of the drilled hole larger than the outer diameter of the pipe pile, ensuring that the pipe pile sinks synchronously with the drill bit under the action of zero or small pile - sinking resistance; the residue soil generated by drilling is carried out to the ground through the spiral blades on the long - flight auger in the inner cavity of the pipe pile.

[0080] In another preferred example, the S2.2. Pile Connection includes: connecting the upper and lower sections of the pipe pile by welding and performing airtight treatment; the grouting pipes between the upper and lower sections of the pipe pile are connected through high - strength aluminum - plastic pipes.

[0081] In another preferred example, the S2.4. Silt Cleaning and Bottom Sealing includes: after cleaning the muck at the bottom of the hole, pouring concrete into the bottom of the hole through the pipe cavity and performing anti - corrosion treatment on the bottom - hole concrete.

[0082] In another preferred example, the S2.7. Arranging Heat Transfer Medium Delivery Pipes in the Pile includes: arranging internal supports in sections in the pile and binding the heat transfer medium delivery pipes to the internal supports to fix the heat transfer medium delivery pipes and reduce their hanging gravity.

[0083] In another preferred example, the S1. Manufacture of Prefabricated Pipe Piles and the S2.7. Arranging Heat Transfer Medium Delivery Pipes in the Pile includes: while prefabricating the pipe piles in the factory, embedding the heat transfer medium delivery pipes in the pipe wall of the pipe piles.

[0084] In another preferred example, after repeating S2.1 and S2.2 until the pile length reaches the designed length or the pile tip effectively embeds into the designed formation in the S2.3., it further includes: performing pile - side grouting through the grouting pipes embedded in the pipe wall of the pipe piles.

[0085] In another preferred example, the S4. Construction of the Road Surface Heat Exchange Part includes: first laying a heat - insulating layer, then installing heat - exchange pipes, and finally laying heat - conducting materials.

[0086] In another preferred example, the S11. Installing the Electrolyte Delivery Unit, the Stack, and the Inverter includes: connecting the positive - electrode piles with electrolyte delivery pipes and connecting them to the positive electrode of the stack through a circulation pump; connecting the negative - electrode piles with electrolyte delivery pipes and connecting them to the negative electrode of the stack through a circulation pump; connecting the stack to the inverter; connecting the inverter to the power supply and the load.

[0087] A large-diameter non-displacement high-bearing-capacity low-carbon energy pile includes: a pipe pile, a pile shoe, a bottom seal, a cover plate, an end plate, a grouting conduit, a slurry outlet, a heat-conducting enhanced grouting body, a heat transfer medium conveying pipe, a circulation pump, and a heat exchange unit; where:

[0088] The pipe pile includes one or more, and the multiple pipe piles are connected end to end. Optionally, the pipe pile is made mainly of solid waste materials and has a diameter of 600 - 2000 mm. Optionally, the multiple pipe piles are connected by welding through the end plate.

[0089] The grouting conduit is configured in the side wall of the pipe pile, and a slurry outlet is configured at the bottom of the pipe pile in cooperation with the grouting conduit; Optionally, the main part of the heat transfer medium conveying pipe can be arranged in the inner cavity of the pipe pile, can also be embedded in its side wall, or can be arranged along the outer wall of the pipe.

[0090] The pile shoe is configured at the bottom end of the bottommost section of the pipe pile. Optionally, the pile shoe further includes: a pile tip main body, one end of the pile tip main body is provided with a plurality of crushing tips, the other end is provided with a pile head end plate, the crushing tip includes a first sharp angle and a second sharp angle connected to each other, the first sharp angle and the second sharp angle are respectively arranged at the ends of the pile tip main body and the longitudinal rib plate, the longitudinal rib plate is arranged on the outside of the pile tip main body, and a plurality of cutting fan-shaped steel sheets are distributed at intervals between the other end and the pile head end plate.

[0091] The cover plate is configured at the top end of the topmost section of the pipe pile, and holes are provided on the cover plate, and the grouting conduit passes through the holes. Optionally, the grouting conduit is a pipe with an inner diameter of 15 - 25 mm and a wall thickness of 2 - 8 mm, and its material includes: aluminum-plastic pipe.

[0092] Both ends of the heat transfer medium conveying pipe are connected to both sides of the heat exchange unit through the circulation pump respectively.

[0093] Optionally, the main part of the heat transfer medium conveying pipe can be arranged in the inner cavity of the pipe pile and fixed through joints.

[0094] For the installation method of a large-diameter non-displacement high-bearing-capacity low-carbon energy pile, the method includes the following steps:

[0095] S1. Drilling - pile sinking;

[0096] S2. Pile splicing;

[0097] S3. Repeat S2 and S3 until the pile length reaches the design length or the pile tip effectively embeds into the design formation;

[0098] S4. Conduct pile side grouting through the grouting pipe embedded in the pipe pile wall;

[0099] S5. After cleaning the soil residues at the bottom of the hole, pour concrete into the bottom of the hole through the lumen to form a bottom seal, thus completing the construction;

[0100] S6. Pile body detection;

[0101] S7. After connecting the heat transfer medium conveying pipeline with the circulation pump and the valve system, connect it to the heat exchange unit;

[0102] S8. Install the cover plate.

[0103] Optionally, further included between the steps S7 and S9 is: injecting heat storage liquid into the cavity of the large-diameter high-bearing-capacity low-carbon pipe pile, reserving a pipe hole on the cover plate for adding heat storage liquid, and reserving monitoring equipment in the cavity. When the heat storage liquid drops, the heat storage liquid can be replenished through the reserved pipe hole, which is convenient for later maintenance.

[0104] Optionally, the step S2 further includes: connecting the expandable-contractable drill bit with the long auger drill pipe and entering the formation where the pile is to be sunk through the inner cavity of the large-diameter pipe pile; driving the drill pipe to drill a hole, and under the action of soil pressure, the drill bit expands to cause the diameter of the drilled hole to be larger than the outer diameter of the pipe pile, ensuring that the pipe pile sinks synchronously with the drill bit under the action of zero or small pile sinking resistance; the residue soil generated by drilling is carried out to the ground through the spiral blades on the long auger drill pipe in the inner cavity of the pipe pile.

[0105] Optionally, the step S3 further includes: connecting the upper and lower sections of the pipe pile by welding and performing airtightness treatment; connecting the grouting ducts between the upper and lower sections of the pipe pile through high-strength aluminum-plastic pipes.

[0106] Optionally, the step S9 includes: placing the cover plate on the top of the pipe pile and sealing the contact part with the pipe pile; passing the pipes already arranged in the pile through the reserved holes of the cover plate and sealing the reserved holes.

[0107] A method for preparing high-performance concrete, wherein the high-performance concrete is made mainly of solid waste materials, including: subjecting industrial materials containing active silicon and aluminum to one or several treatment methods among alkali activation method, thermal activation method, mechanical activation method, microbial activation method, electrochemical activation method and hydrothermal treatment method to prepare high-performance cementitious materials, and then configuring high-performance concrete based on the cementitious materials.

[0108] Optionally, the method further includes: adding microcapsule materials to the high-performance cementitious materials, and the microcapsule materials are prepared by first mixing a phase change material with an emulsifier to form a microemulsion, and then mixing the microemulsion with a microbial solution producing urease, a mixed solution containing a calcium source and urea.

[0109] It should be understood that within the scope of the present invention, the above-mentioned technical features of the present invention and the technical features specifically described hereinafter (such as in the embodiments) can be combined with each other to form new or preferred technical solutions. Due to space limitations, they will not be repeated one by one here. BRIEF DESCRIPTION OF THE DRAWINGS

[0110] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0111] Figure 1 is a schematic diagram of an energy storage de-icing system for a road and bridge in an example of the present invention;

[0112] Figure 2 is a schematic diagram of a single pile foundation in an example of the present invention;

[0113] Figure 3 is a schematic diagram of the cross-section of a pile foundation in an example of the present invention;

[0114] Figure 4 is a schematic diagram of the road surface heat exchange part in an example of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0115] Through extensive and in-depth research and a large number of screenings, the inventor of the present invention has developed for the first time an energy storage de-icing system for a road and bridge and its installation method. Compared with the prior art, the present invention uses a pipe pile with a large diameter, non-displacement, high bearing capacity and an anti-corrosion inner wall as the pile foundation of the bridge; electrolyte is filled into the pipe pile as an energy storage medium to achieve the purpose of energy storage; a circulation pump system is used to make the electrolyte circulate between the pipe pile and the stack to achieve the purpose of charging and discharging; the electrical energy filled can be from green energy sources such as photovoltaic and wind turbines laid along the traffic road, and the electrical energy released can be used for road heating and other operating projects. At the same time, heat conduction pipes are buried inside the pipe pile to extract the heat of the electrolyte and the heat of the underground rock and soil mass together to achieve road surface anti-icing; the present invention provides the integration of the "energy network" and the "transportation network", which can effectively solve the efficiency problem and energy consumption problem in the geothermal pipe anti-icing system, and while meeting the basic requirements of anti-icing and de-icing, it can also take into account the charging and discharging functions and serve the energy consumption needs of the transportation network, with good economic benefits. On this basis, the present invention is completed.

[0116] TERMINOLOGY

[0117] As used herein, the terms "heat transfer medium conveying pipe", "underground heat exchange pipe", etc. can be used interchangeably.

[0118] The main advantages of the present invention include:

[0119] (a) It can perfectly integrate an energy storage system that is technically feasible, economically applicable, safe and reliable with the pile foundation system of a bridge, innovatively solving the problem of spatial limitation of the energy storage system in the transportation network and making more efficient use of space;

[0120] (b) It innovatively extracts the heat in the energy storage system and the heat in the underground rock and soil mass together to achieve anti-icing on the road surface. While meeting the basic requirements of anti-icing and de-icing, it can also take into account the charging and discharging functions and serve the energy demand of the transportation network, with good economic benefits;

[0121] (c) Both the energy storage and de-icing processes are low-carbon and environmentally friendly;

[0122] (d) Since each component is set underground, it is not easily touched and damaged, and has a long service life.

[0123] The present invention will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and not to limit the scope of the present invention. In addition, the drawings are schematic diagrams, so the devices and equipment of the present invention are not limited by the size or proportion of the schematic diagrams.

[0124] It should be noted that in the claims and the description of this patent, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising one" does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0125] Embodiment

[0126] The energy storage and de-icing system for road and bridge in this embodiment is as Figures 1-4 shown.

[0127] As Figure 1 shown, the system includes: a positive electrode pile (1), a negative electrode pile (2), an electrolyte delivery unit, an electric stack (4), a road surface heat exchange part (5), an inverter (6), a valve system (7), a heat exchange unit (8), a heat transfer medium delivery unit, and an integrated control unit (9).

[0128] The positive electrode pile (1) is a large-diameter pipe pile capable of storing positive electrode electrolyte inside; the negative electrode pile (2) is a large-diameter pipe pile capable of storing negative electrode electrolyte inside; the electrolyte delivery unit is composed of an electrolyte delivery pipe (107) and a circulation pump (301); the stack (4) enables the positive electrode electrolyte and the negative electrode electrolyte to react inside it, realizing the mutual conversion between chemical energy and electrical energy.

[0129] The road surface heat exchange part (5) is composed of heat exchange pipes laid under the road surface, temperature-stress sensors (503), heat-conducting materials (501) in contact with the upper surface of the heat exchange pipes, and heat-insulating materials (502) in contact with the lower surface of the heat exchange pipes; the heat transfer medium delivery unit is composed of a heat transfer medium delivery pipe (108) and a circulation pump (302).

[0130] The electrolyte delivery unit connects one or more positive electrode piles (1) (or negative electrode piles (2)) using the electrolyte delivery pipe (107), then connects to the stack (4), and uses the circulation pump (301) to circulate the positive electrode electrolyte (or negative electrode electrolyte) in the positive electrode pile (1) (or negative electrode pile (2)) and the stack (4), realizing the storage and release of electrical energy. The stack (4) is externally connected to the electrical energy on the power supply side and the load on the user side through an inverter (6).

[0131] The main bodies of the heat transfer medium delivery pipes (108) in the heat transfer medium delivery unit are buried in the positive electrode pile (1) or the negative electrode pile (2), and both ends are respectively connected to both sides of the heat exchange unit (8) through a valve system (7), and the circulation pump (302) is used to make the heat transfer medium circulate in the heat transfer medium delivery pipe (108), realizing the heat exchange between the heat in the positive electrode pile (1) or the negative electrode pile (2) and the heat in the heat exchange unit (8).

[0132] The heat exchange module includes an electric heating part (10), and this electric heating part (10) generates heat by heating an electric heating device (such as a resistance wire, etc.) with the electrical energy generated by the flow battery or the electrical energy supplied by other external power sources. The electric heating part (10) provides an auxiliary heat source when the heat provided by the underground heat exchange pipes is insufficient to implement road surface deicing or the road surface deicing efficiency is low.

[0133] The comprehensive control unit (9) is composed of a software system, sensors, controllers, instruments, etc., and can not only control the charging and discharging of the stack (4), but also enable the heat in the positive electrode pile (1) or the negative electrode pile (2) to exchange heat with the heat in the road surface heat exchange part (5) through the heat exchange unit.

[0134] The positive electrode pile (1) or the negative electrode pile (2) is composed of a precast pipe pile (111), a pile shoe (101), a bottom seal (102), and a top cover plate (110).

[0135] The diameter of the precast pipe pile (111) can be greater than 800 mm, the inner wall has corrosion resistance, and the bearing capacity can reach more than 1500 tons. The precast pipe pile (111) further includes: a grouting conduit (106) embedded in the inner wall, a slurry outlet (103) provided at the bottom, a grouting port (105) provided on the side wall, and is connected by means of a head (109).

[0136] The top cover plate (110) has corrosion resistance and is provided with holes through which the electrolyte delivery pipe (107) and the heat transfer medium delivery pipe can pass.

[0137] The valve system (7) includes: a four-way valve.

[0138] The heat exchange unit (8) is composed of a compressor, an evaporator, a condenser, an expansion valve and a pipeline system.

[0139] The stack (4) enables the positive electrolyte and the negative electrolyte to react inside it, and includes:

[0140]

[0141] The heat exchange pipes laid under the road surface include: the periphery of the heat exchange pipes is filled with a shaped phase change heat storage material.

[0142] The heat conductive material (501) in contact with the upper surface of the heat exchange pipe includes: a cementitious material containing calcium carbonate, or a solidified body formed by microbial-induced calcium carbonate precipitation. The heat insulation material (502) in contact with the lower surface of the heat exchange pipe includes: a cementitious material obtained from solid waste containing silicon and aluminum under excitation conditions.

[0143] The electrolyte delivery unit includes: a heat exchange device (5) is arranged on the electrolyte delivery pipe (107), and the heat in the stack (4) can be exchanged with the heat on the user side through the heat exchange device (5).

[0144] The main body of each heat transfer medium delivery pipe (108) is buried in the positive electrode pile (1) or the negative electrode pile (2), including: after the heat transfer medium delivery pipe (108) passes through the top cover plate (110), it is arranged inside the precast pipe pile (111).

[0145] The electric energy on the power supply side includes: the electric energy provided by the power grid, photovoltaic, and wind power.

[0146] The construction and installation method of the above-mentioned energy storage deicing system for road and bridge includes the following steps:

[0147] S1. Manufacture of precast pipe piles;

[0148] S2. Construction of the lower foundation structure:

[0149] S2.1. Drilling - pile sinking;

[0150] S2.2. Pile splicing;

[0151] S2.3. Repeat S2.1 and S2.2 until the pile length reaches the designed length or the pile tip is effectively embedded in the designed formation;

[0152] S2.4. Silt cleaning and bottom sealing;

[0153] S2.5. Repeat S2.1 to S2.4 until all pile foundation construction is completed;

[0154] S2.6. Sealing test and pile body inspection;

[0155] S2.7. Arrange the heat transfer medium conveying pipeline (108) inside the pile;

[0156] S2.8. Inject electrolyte into the pile;

[0157] S2.9. Install the top cover plate (110);

[0158] S3. Construction of the superstructure of the pile foundation;

[0159] S4. Construction of the pavement heat exchange part;

[0160] S5. Install the electrolyte conveying unit, the fuel cell stack (4), and the inverter (6);

[0161] S13. Connect each device to the integrated control unit (9);

[0162] S14. Commissioning.

[0163] S15. Operation.

[0164] S1. Manufacture of precast pipe piles, including: while precasting pipe piles in the factory, embedding grouting pipes in the pipe wall of the pipe piles; performing anti-corrosion treatment on the inner wall of the pipe piles.

[0165] The grouting pipe includes an aluminum-plastic pipe with an inner diameter of 20 mm and a wall thickness of 4 mm.

[0166] S2.1. Drilling - pile sinking, including: connecting the expandable - contractible drill bit to the long auger drill pipe and entering the formation where the pile is to be sunk through the inner cavity of the large - diameter pipe pile; driving the drill pipe to drill, and under the action of soil pressure, the drill bit expands to make the drilled hole diameter larger than the outer diameter of the pipe pile, ensuring that the pipe pile sinks synchronously with the drill bit under the action of zero or small pile - sinking resistance; the residual soil generated by drilling is carried out to the ground through the spiral blades on the long auger drill pipe in the inner cavity of the pipe pile.

[0167] S2.2. Pile splicing, including: connecting the upper and lower sections of the pipe piles by welding and performing airtightness treatment; connecting the grouting pipes between the upper and lower sections of the pipe piles through high - strength aluminum - plastic pipes.

[0168] S2.4. Dewatering and bottom sealing, including: after cleaning the muck at the bottom of the hole, pouring concrete into the bottom of the hole through the pipe cavity, and performing anti-corrosion treatment on the concrete at the bottom of the hole.

[0169] S2.7. Arranging heat transfer medium conveying pipes (108) inside the pile, including: arranging internal supports in sections inside the pile, and binding the heat transfer medium conveying pipes (108) to the internal supports for fixing the heat transfer medium conveying pipes (108) and reducing their hanging gravity.

[0170] S1. Manufacturing of precast pipe piles and S2.7. Arranging heat transfer medium conveying pipes (108) inside the pile, including: while precasting pipe piles in the factory, embedding the heat transfer medium conveying pipes (108) in the pipe wall of the pipe piles.

[0171] S2.3. Repeat S2.1 and S2.2 until the pile length reaches the designed length or the pile tip effectively embeds into the designed formation, and further includes: performing pile side grouting through the grouting pipes embedded in the pipe wall of the pipe piles.

[0172] S4. Construction of the road surface heat exchange part, including: first laying the insulation layer (502), then installing the heat exchange pipes, and finally laying the heat conducting material (501).

[0173] S11. Installing the electrolyte conveying unit, the fuel cell stack (4), and the inverter (6), including: connecting the positive electrode piles (1) with the electrolyte conveying pipes (107), and accessing the positive electrode of the fuel cell stack (4) through the circulation pump (301); connecting the negative electrode piles (2) with the electrolyte conveying pipes (107), and accessing the negative electrode of the fuel cell stack (4) through the circulation pump (301); connecting the fuel cell stack (4) with the inverter (6); connecting the inverter (6) with the power source and the load.

[0174] All documents mentioned in the present invention are cited herein as references, as if each document were individually cited as a reference. In addition, it should be understood that after reading the above teachings of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of this application.

Claims

1. An energy storage de-icing system for road and bridge Characterized in that The system includes An energy storage module that stores energy through a flow battery, including an electrolyte solution arranged underground; and A heat exchange module, the heat exchange module includes an underground heat exchange pipeline arranged in the electrolyte solution, and a road surface heat exchange part arranged under the road and bridge, wherein the underground heat exchange pipeline provides heat for the road surface heat exchange part.

2. The system according to claim 1 Characterized in that The electrolyte solution is divided into a positive electrode electrolyte solution and a negative electrode electrolyte solution. The positive electrode electrolyte solution is accommodated in a positive electrode pile, and the negative electrode electrolyte solution is accommodated in a negative electrode pile.

3. The system according to claim 2 Characterized in that The positive electrode electrolyte solution in the positive electrode pile and the negative electrode electrolyte solution in the negative electrode pile are respectively transported to a stack through an electrolyte solution conveying unit for reaction; The electrolyte solution conveying unit connects one or more of the positive electrode piles through an electrolyte solution conveying pipeline to access the stack, and connects one or more of the negative electrode piles through an electrolyte solution conveying pipeline to access the stack, and uses a circulation pump to circulate the positive electrode electrolyte solution in the positive electrode pile and the stack, and circulate the negative electrode electrolyte solution in the negative electrode pile and the stack to realize the storage and release of electric energy.

4. The system according to claim 2 Characterized in that The diameter of the positive electrode pile or the negative electrode pile is greater than 600 mm; the inner wall has corrosion resistance, and the bearing capacity is more than 1200 tons.

5. The system according to claim 2 Characterized in that The charge and discharge reaction of the energy storage module is 6. The system according to claim 2 Characterized in that The positive electrode pile or the negative electrode pile includes a precast pipe pile, a pile shoe, a bottom seal body and a top cover plate.

7. The system according to claim 1 Characterized in that The road surface heat exchange part includes a heat exchange pipe laid under the road surface, a heat conduction layer in contact with the upper surface of the heat exchange pipe, and a heat insulation layer in contact with the lower surface of the heat exchange pipe.

8. The system according to claim 1 Characterized in that The heat exchange module further includes an electric heating part, and the electric heating part provides heat to the road surface heat exchange part by generating heat with the electric energy generated by the flow battery or the electric energy supplied by other external power sources.

9. The system according to claim 1 Characterized in that The system includes an integrated control unit, and the integrated control unit controls both the charge and discharge of the stack and the heat exchange between the heat in the positive electrode pile or the negative electrode pile and the heat in the road surface heat exchange part.

10. An installation method of an energy storage de-icing system for road and bridge according to claim 2 Characterized in that The method includes the following steps (1) Install the positive electrode pile and the negative electrode pile underground, where the positive electrode pile and the negative electrode pile are not capped; (2) Arrange the underground heat exchange pipeline in the positive electrode pile and the negative electrode pile; (3) Inject the electrolyte solution into the positive electrode pile and the negative electrode pile; (4) Cap the positive electrode pile and the negative electrode pile; and (5) Lay the road surface heat exchange part.

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