CN221345429U - Energy storage deicing system for roads and bridges - Google Patents

Abstract

The utility model discloses an energy storage deicing system for roads and bridges, the system comprising: an energy storage module, the energy storage module stores energy through a liquid flow battery, including an electrolyte arranged underground; and a heat exchange module, the heat exchange module comprising an underground heat exchange pipe arranged in the electrolyte, and a road surface heat exchange part arranged under the road and bridge, wherein the underground heat exchange pipe provides heat for the road surface heat exchange part. The heat used for deicing in the utility model comes from the heat of the underground rock and soil, the heat released by the charge and discharge reaction of the liquid flow battery, and the heat energy prepared by consuming the electric energy stored in the energy storage module, which can realize the functions of energy storage and deicing, is low-carbon and environmentally friendly, and has significant energy-saving effects.

Description

Energy storage deicing system for roads and bridges

Technical Field

The utility model relates to the field of transportation and energy integration, and more specifically to an energy storage deicing system for roads and bridges.

Background technique

In winter, snow and ice on bridge decks and roads can easily lead to frequent traffic accidents, causing huge economic losses and casualties. In order to maintain normal traffic order, snow and ice must be removed in a timely and effective manner. At present, commonly used methods are mainly divided into two categories: passive snow melting and ice removal technology and active snow melting technology. Among them, passive snow melting and ice removal technology mainly includes manual removal method, mechanical removal method and chemical snow melting method. These methods have been widely used in road snow melting and ice removal projects in my country, but there are problems such as damage to road (bridge) surfaces, insufficient low-carbon and environmental protection, high cost, and limited use conditions. The technology for road anti-icing based on the geothermal pipe method has the advantages of low carbon, green, safe, and economical. The geothermal pipe method extracts heat energy from underground rock or water to achieve road anti-icing, but there are also some problems and challenges:

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

2. Efficiency issues: Under certain climatic conditions, the deicing effect of underground heat exchange tubes may not be as expected. For example, in continuous low temperature and heavy snow weather, the underground temperature may not be sufficient to quickly melt the snow.

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

By integrating geothermal pipes into the pile foundation system of the bridge, the additional excavation and land use costs required to install a traditional ground source heat pump system can be saved, achieving the goal of significantly reducing initial investment. However, this method is still not enough to solve the efficiency and energy consumption problems. In particular, when additional non-green electricity is used to heat the road surface, carbon emissions and operating costs will be further increased, which is contrary to low carbon and green.

Therefore, there is still a lack of an energy-saving, environmentally friendly and economical deicing system in the art.

Utility Model Content

The purpose of the utility model is to provide an energy storage deicing system for roads and bridges. The heat used for deicing in the utility model comes from the heat of underground rock and soil, the heat released by the charging and discharging reaction of the liquid flow battery, and the thermal energy generated by consuming the electric energy generated by green energy such as photovoltaic and wind turbines stored in the energy storage module. It can realize the functions of energy storage and deicing, is low-carbon and environmentally friendly, and has significant energy-saving effects.

In a first aspect of the utility model, an energy storage deicing system for roads and bridges is provided, the system comprising: an energy storage module, the energy storage module stores energy through a flow battery, including an electrolyte disposed underground; and a heat exchange module, the heat exchange module comprising an underground heat exchange pipe disposed in the electrolyte, and a road surface heat exchange portion disposed under the road and bridge, wherein the underground heat exchange pipe provides heat for the road surface heat exchange portion.

In another preferred embodiment, the underground heat exchange pipe absorbs the heat generated in the flow battery reaction and absorbs the underground heat (such as the heat in the soil) by using the electrolyte as a medium.

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

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

In another preferred embodiment, the underground foundation is a pile.

In another preferred embodiment, the pile includes a positive pole pile and a negative pole pile.

In another preferred embodiment, the electrolyte is divided into a positive electrode electrolyte and a negative electrode electrolyte, the positive electrode electrolyte is contained in a positive electrode pile, and the negative electrode electrolyte is contained in a negative electrode pile.

In another preferred embodiment, the positive electrode pile and the negative electrode pile are located at a depth of 10-150 m from the ground; preferably, 20-80 m; more preferably, 30-60 m.

In another preferred embodiment, the diameter of the positive electrode pile or the negative electrode pile is greater than 600 mm; preferably, greater than 800 mm; more preferably, greater than 1000 mm; the inner wall is corrosion-resistant, and the bearing capacity is greater than 1200 tons; preferably, greater than 1500 tons; more preferably, greater than 1700 tons.

In addition to the inner walls of the positive electrode pile and the negative electrode pile being designed to be corrosion-resistant, the heat exchange tubes, pipes, flanges between the piles, etc. buried in the piles are also designed to be corrosion-resistant, that is, the surfaces of the equipment in contact with the electrolyte are all designed to be corrosion-resistant to extend the service life and prevent leakage and pollution. The purpose of corrosion resistance can be achieved by manufacturing these components and pipes with corrosion-resistant materials (for example, 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 (for example, epoxy resin, polyurethane and polyethylene coatings, etc.).

In another preferred embodiment, the charge and discharge reaction of the energy storage module is:

.

In another preferred embodiment, the positive electrode electrolyte in the positive electrode pile and the negative electrode electrolyte in the negative electrode pile are respectively transported to the battery stack through electrolyte transport units for reaction.

In another preferred example, the electrolyte transport unit connects one or more of the positive electrode piles to the battery stack through an electrolyte transport pipeline, and connects one or more of the negative electrode piles to the battery stack through an electrolyte transport pipeline, and uses a circulation pump to circulate the positive electrode electrolyte in the positive electrode pile and the battery stack, and to circulate the negative electrode electrolyte in the negative electrode pile and the battery stack, so as to realize the storage and release of electric energy.

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

In another preferred example, the electrolyte transport unit also includes a replenishment device, which is used to replenish the electrolyte when the electrolyte is reduced due to volatilization or the like, or when the power generation needs to be increased; and to withdraw the electrolyte when the electrolyte leaks, the pile needs to be repaired, the power generation needs to be reduced, etc.

In another preferred example, the replenishment device includes a spare tank, and the spare tank is used to store the electrolyte.

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

In another preferred example, the fuel cell stack receives electric energy from an external power source on the inverter and a load on the user side.

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

In another preferred example, the positive electrode pile or the negative electrode pile includes a prefabricated pipe pile, a pile shoe, a bottom seal and a top cover plate.

In another preferred embodiment, the prefabricated pipe pile includes a grouting conduit embedded in the inner wall, a grouting outlet arranged at the bottom, a grouting outlet arranged at the side wall, and an end connecting the grouting conduit, the grouting outlet and the grouting outlet.

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

In another preferred embodiment, the top cover plate is pre-set with holes, and the electrolyte delivery pipe and the heat transfer medium delivery pipe can pass through the holes.

In another preferred example, the main body of each of the heat transfer medium delivery pipelines is buried in the positive pole pile or the negative pole pile, including: the heat transfer medium delivery pipeline passes through the top cover plate and is arranged inside the prefabricated pipe pile.

In another preferred embodiment, the underground heat exchange pipe absorbs the heat in the positive electrode pile or the negative electrode pile (ie, the heat stored in the electrolyte).

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

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

In another preferred embodiment, the heat exchange module further includes an electric heating part, which generates heat to the road surface heat exchange part by the electric energy generated by the flow battery or the electric energy supplied by other external power sources.

In another preferred embodiment, the heat exchange module further includes an electric heating part, which generates heat by heating an electric heating device (such as a resistance wire, etc.) through the electric energy generated by the liquid flow battery or the electric energy supplied by other external power sources.

In another preferred embodiment, the electric heating part provides an auxiliary heat source when the heat provided by the underground heat exchange pipe is insufficient to implement road deicing or the road deicing efficiency is low. In another preferred embodiment, the main body of each underground heat exchange pipe is buried in the positive pole pile or the negative pole pile, and the two ends are respectively connected to the two sides of the heat exchange unit through the valve system, and the circulating pump is used to make the heat transfer medium circulate in the heat transfer medium delivery pipe to achieve heat exchange between the positive pole pile or the negative pole pile and the heat exchange unit.

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

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

In another preferred example, the road surface heat exchange portion includes a heat exchange tube laid under the road surface, a heat conductive layer in contact with the upper surface of the heat exchange tube, and a thermal insulation layer in contact with the lower surface of the heat exchange tube.

In another preferred example, the pavement heat exchange part also includes a temperature-stress sensor.

In another preferred embodiment, the heat exchange fluid in the heat exchange tube laid under the road surface absorbs heat through the heat exchange unit and releases the absorbed heat to the frozen road surface to de-ice.

In another preferred embodiment, the heat exchange tubes laid under the road surface include a shaped phase change heat storage material filled around the heat exchange tubes.

In another preferred embodiment, the material of the heat-conducting layer in contact with the upper surface of the heat exchange tube includes: a gelling material containing calcium carbonate, or a solidified body formed by microbial-induced calcium carbonate precipitation.

In another preferred embodiment, the material of the thermal insulation layer in contact with the lower surface of the heat exchange tube includes: a gelling material obtained under excitation conditions from solid waste containing silicon and aluminum.

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 battery stack with the heat on the user side through the auxiliary heat exchange device.

In another preferred embodiment, the system includes an integrated management and control unit, which controls both the charging and discharging of the battery stack and the heat exchange between the positive electrode pile or the negative electrode pile and the heat exchange part of the road surface.

In another preferred example, the integrated management and control unit includes a control panel, a sensor, a controller and an instrument.

In another preferred example, the integrated management and control unit can intelligently control the charging, discharging and de-icing functions based on long-term operation data.

In a second aspect of the present invention, a method for installing the above-mentioned energy storage deicing system for roads and bridges is provided, and the method comprises the following steps:

(1) installing the positive electrode pile and the negative electrode pile underground, wherein the positive electrode pile and the negative electrode pile are not capped;

(2) Arranging the underground heat exchange pipeline in the positive electrode pile and the negative electrode pile;

(3) injecting the electrolyte into the positive electrode pile and the negative electrode pile;

(4) capping the positive electrode pile and the negative electrode pile; and

(5) Laying the pavement heat exchange portion.

In another preferred embodiment, more specifically, the method comprises the following steps:

S1. Manufacture of prefabricated pipe piles;

S2. Construction of lower foundation structure:

S2.1. Drilling-pile driving;

S2.2. Connecting piles;

S2.3. Repeat S2.1 and S2.2 until the pile length reaches the designed length or the pile end is effectively embedded in the designed stratum;

S2.4. Desilting and bottom sealing;

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

S2.6. Sealing test and pile inspection;

S2.7. Arrange the underground heat exchange pipe in the pile;

S2.8. Inject the electrolyte into the pile;

S2.9. Install the top cover;

S3. Construction of pile foundation superstructure;

S4. Construction of road surface heat exchange part;

S5. Install the electrolyte delivery unit, battery stack, and inverter;

S13. Connect each device to the integrated management and control unit;

S14. Debugging;

S15. Run.

In another preferred embodiment, the manufacturing of the prefabricated pipe piles in S1 includes: embedding the grouting pipe in the pipe wall of the pipe pile while prefabricating the pipe piles in the factory; and performing anti-corrosion treatment on the inner wall of the pipe pile.

In another preferred embodiment, the grouting pipe comprises an aluminum-plastic pipe with an inner diameter of 20 mm and a wall thickness of 4 mm.

In another preferred example, the S2.1. drilling and pile driving comprises: connecting an expandable and retractable drill bit to a long spiral drill rod and then entering the stratum to be driven through the inner cavity of a large-diameter pipe pile; driving the drill rod to drill, and the drill bit expands under the action of soil pressure to cause the diameter of the drilled hole to be larger than the outer diameter of the pipe pile, thereby ensuring that the pipe pile sinks synchronously with the drill bit under the action of zero pile driving resistance or a relatively small pile driving resistance; the residual soil generated by the drilling is brought out to the ground through the spiral blades on the long spiral drill rod in the inner cavity of the pipe pile.

In another preferred example, the S2.2. pile connection includes: the upper and lower sections of the pipe piles are connected by welding and sealed; the grouting pipes between the upper and lower sections of the pipe piles are connected by a high-strength aluminum-plastic pipe.

In another preferred example, the S2.4. dredging and bottom sealing includes: after cleaning the debris 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.

In another preferred embodiment, the heat transfer medium delivery pipeline is arranged in the S2.7. pile, including: internal supports are set up in sections in the pile, and the heat transfer medium delivery pipeline is tied to the internal supports to fix the heat transfer medium delivery pipeline and reduce its hanging gravity.

In another preferred embodiment, the manufacturing of the prefabricated pipe piles S1. and the arrangement of the heat transfer medium delivery pipeline in the piles S2.7, include: while prefabricating the pipe piles in the factory, pre-burying the heat transfer medium delivery pipeline in the pipe wall of the pipe piles.

In another preferred embodiment, the step S2.3. repeats S2.1 and S2.2 until the pile length reaches the designed length or the pile end is effectively embedded in the designed stratum, and further comprises: performing pile side grouting through a grouting pipe pre-buried in the wall of the pile.

In another preferred example, the construction of S4. pavement heat exchange part includes: first laying the insulation layer, then installing the heat exchange pipe, and finally laying the heat conductive material.

In another preferred example, the S11. installing the electrolyte delivery unit, the fuel cell stack, and the inverter includes: connecting the positive electrode piles with an electrolyte delivery pipe, and connecting them to the positive electrode of the fuel cell stack through a circulation pump; connecting the negative electrode piles with an electrolyte delivery pipe, and connecting them to the negative electrode of the fuel cell stack through a circulation pump; connecting the fuel cell stack to the inverter; connecting the inverter to the power supply and the load.

A large-diameter non-squeezed soil high-bearing-capacity low-carbon energy pile comprises: a pipe pile, a pile shoe, a bottom sealing body, a cover plate, an end plate, a grouting conduit, a grouting outlet, a heat-conducting enhanced grouting body, a heat transfer medium delivery pipeline, a circulation pump and a heat exchange unit; wherein:

The pipe piles include one or more, and the plurality of pipe piles are connected end to end. Optionally, the pipe piles are made of solid waste materials as the main material, and the diameter is 600-2000mm. Optionally, the plurality of pipe piles are connected by welding through end plates.

The grouting conduit is arranged in the side wall of the pipe pile and the bottom of the pipe pile is provided with a grouting outlet in cooperation with the grouting conduit; optionally, the main body of the heat transfer medium delivery pipeline can be arranged in the inner cavity of the pipe pile, or can be pre-buried in the side wall thereof, or can be arranged along the outer wall thereof;

The pile shoe is arranged at the bottom end of the bottommost section of the pipe pile. Optionally, the pile shoe further comprises: a pile tip body, one end of the pile tip body is provided with a plurality of crushing tips, and the other end is provided with a pile head end plate, the crushing tips comprise a first sharp corner and a second sharp corner connected to each other, the first sharp corner and the second sharp corner are respectively arranged at the ends of the pile tip body and the longitudinal rib plate, the longitudinal rib plate is arranged on the outside of the pile tip body, and a plurality of cutting sector ring steel sheets are spaced between the other end thereof and the pile head end plate.

The cover plate is arranged on the top of the pipe pile at the top section, and a hole is arranged on the cover plate, and the grouting conduit passes through the hole. Optionally, the grouting conduit is a tube with an inner diameter of 15-25 mm and a wall thickness of 2-8 mm, and its material includes: aluminum-plastic tube.

The two ends of the heat transfer medium delivery pipeline are respectively connected to the two sides of the heat exchange unit through the circulation pump.

Optionally, the main body of the heat transfer medium conveying pipeline can be arranged in the inner cavity of the pipe pile and fixed by a joint.

A method for installing a large-diameter non-squeezed soil high-bearing-capacity low-carbon energy pile comprises the following steps:

S1. Drilling-pile driving;

S2. Connect the pile;

S3. Repeat S2 and S3 until the pile length reaches the designed length or the pile end is effectively embedded in the designed stratum;

S4. Grouting the pile side through the grouting pipe pre-buried in the pipe wall of the pile;

S5. After cleaning the bottom of the hole, pour concrete into the bottom of the hole through the tube cavity to form a bottom seal to complete the construction;

S6. Pile inspection;

S7. After connecting the heat transfer medium delivery pipeline to the circulation pump and the valve system, it is connected to the heat exchange unit;

S8. Install the cover.

Optionally, the step between S7 and S9 further includes: injecting thermal 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 thermal storage liquid, and reserving monitoring equipment in the cavity. When the thermal storage liquid drops, the thermal storage liquid can be replenished through the reserved pipe hole, which is convenient for later maintenance.

Optionally, step S2 further includes: connecting the expandable and retractable drill bit to the long spiral drill rod and entering the stratum to be sunk through the inner cavity of the large-diameter pipe pile; driving the drill rod to drill, and the drill bit expands under the action of soil pressure to cause the diameter of the drilled hole to be larger than the outer diameter of the pipe pile, thereby ensuring that the pipe pile sinks synchronously with the drill bit under the action of zero pile sinking resistance or a smaller pile sinking resistance; the residual soil generated by the drilling is brought out to the ground through the spiral blades on the long spiral drill rod in the inner cavity of the pipe pile.

Optionally, the step S3 further comprises: connecting the upper and lower sections of the pipe piles by welding and performing airtight treatment; and connecting the grouting conduits between the upper and lower sections of the pipe piles by a high-strength aluminum-plastic pipe.

Optionally, step S9 includes: placing the cover plate on the top of the pipe pile and sealing the contact portion between the cover plate and the pipe pile; passing the pipe arranged in the pile through the reserved hole of the cover plate and sealing the reserved hole.

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 below (such as embodiments) can be combined with each other to form a new or preferred technical solution. Due to space limitations, they will not be described one by one here.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

FIG1 is a schematic diagram of an energy storage deicing system for roads and bridges in one embodiment of the utility model;

FIG2 is a schematic diagram of a single pile foundation in an example of the present utility model;

3 is a schematic diagram of a pile foundation section in an example of the utility model;

FIG. 4 is a schematic diagram of a road surface heat exchange portion in an example of the present utility model.

Detailed ways

After extensive and in-depth research and a large amount of screening, the inventors have developed for the first time an energy storage and deicing system for roads and bridges. Compared with the prior art, the utility model uses a large-diameter, non-soil-squeezing, high-bearing-capacity pipe pile with an inner wall having anti-corrosion properties 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 circulating pump system is used to circulate the electrolyte between the pipe pile and the battery stack to achieve the purpose of charging and discharging; the charged electric energy can come from green energy such as photovoltaic and wind turbines laid along the traffic roads, and the released electric energy can be used for road heating and other operational projects. At the same time, a heat pipe is buried inside the pipe pile to extract the heat of the electrolyte and the heat of the underground rock and soil together to prevent the road from icing. The utility model provides an integration of the "energy network" and the "transportation network", which can effectively solve the efficiency and energy consumption problems in the geothermal pipe anti-icing and de-icing system, and while meeting the basic needs of anti-icing and de-icing, it can also take into account the charging and discharging functions, serve the energy needs of the transportation network, and has good economic benefits. On this basis, the utility model is completed.

the term

As used herein, the terms "heat transfer medium transport pipeline", "underground heat exchange pipeline" and the like may be used interchangeably.

The main advantages of the utility model include:

(a) It can perfectly integrate the energy storage system that is both technically feasible, economical, safe and reliable with the pile foundation system of the bridge, innovatively solving the space limitation problem of the energy storage system in the transportation network and making space utilization more economical;

(b) Innovatively extract the heat in the energy storage system and the heat in the underground rock and soil to prevent the road from icing. While meeting the basic needs of anti-icing and de-icing, it can also take into account the charging and discharging functions, serve the energy needs of the transportation network, and has good economic benefits;

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

(d) As all components are installed underground, they are not easily touched or damaged and have a long service life.

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

It should be noted that in the claims and description of this patent, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including one" do not exclude the existence of other identical elements in the process, method, article or device including the elements.

Example

The energy storage deicing system for roads and bridges of this embodiment is shown in Figures 1-4.

As shown in FIG1 , the system includes: a positive electrode pile (1), a negative electrode pile (2), an electrolyte transport unit, a battery 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 transport unit and an integrated management and control unit (9).

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

The road surface heat exchange part (5) is composed of a heat exchange tube laid under the road surface, a temperature-stress sensor (503), a heat conductive material (501) in contact with the upper surface of the heat exchange tube, and a heat insulation material (502) in contact with the lower surface of the heat exchange tube; the heat transfer medium conveying unit is composed of a heat transfer medium conveying pipeline (108) and a circulation pump (302).

The electrolyte delivery unit uses an electrolyte delivery pipeline (107) to connect one or more positive electrode piles (1) (or negative electrode piles (2)), and then connects them to the battery stack (4), and uses a 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 battery stack (4), thereby realizing the storage and release of electric energy. The battery stack (4) is connected to the electric energy on the external power supply side and the load on the user side through the inverter (6).

The main body of each heat transfer medium delivery pipeline (108) in the heat transfer medium delivery unit is buried in the positive electrode pile (1) or the negative electrode pile (2), and the two ends are respectively connected to the two sides of the heat exchange unit (8) through the valve system (7), and the circulation pump (302) is used to make the heat transfer medium circulate in the heat transfer medium delivery pipeline (108), so as to realize the heat exchange between the positive electrode pile (1) or the negative electrode pile (2) and the heat exchange unit (8).

The heat exchange module comprises an electric heating part (10), which generates heat by heating an electric heating device (such as a resistance wire, etc.) with electric energy generated by a flow battery or electric 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 pipeline is insufficient for deicing the road surface or the deicing efficiency of the road surface is low.

The integrated control unit (9) is composed of a software system, sensors, controllers and instruments, etc., and can control the charging and discharging of the battery stack (4), and can also allow the heat in the positive electrode pile (1) or the negative electrode pile (2) to be exchanged with the heat in the road surface heat exchange part (5) through the heat exchange unit.

The positive electrode pile (1) or the negative electrode pile (2) is composed of a prefabricated pipe pile (111), a pile shoe (101), a bottom sealing body (102) and a top cover plate (110).

The diameter of the prefabricated pipe pile (111) can be greater than 800 mm, the inner wall is corrosion-resistant, and the bearing capacity can reach more than 1,500 tons. The prefabricated pipe pile (111) further includes: a grouting conduit (106) is pre-buried in the inner wall, a grouting outlet (103) is provided at the bottom, and a grouting outlet (105) is provided on the side wall, and the piles are connected by an end head (109).

The top cover plate (110) has anti-corrosion properties and is provided with holes through which the electrolyte delivery pipe (107) and the heat transfer medium delivery pipe can pass.

The valve system (7) comprises: a four-way valve.

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

The battery stack (4) allows the positive electrode electrolyte and the negative electrode electrolyte to react within it, including:

.

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

The heat-conducting material (501) in contact with the upper surface of the heat exchange tube includes: a gelling material containing calcium carbonate, or a solidified body formed by microbial induction of calcium carbonate precipitation. The heat-insulating material (502) in contact with the lower surface of the heat exchange tube includes: a gelling material obtained under stimulating conditions from solid waste containing silicon and aluminum.

The electrolyte delivery unit comprises: a heat exchange device (5) arranged on an electrolyte delivery pipeline (107), which can exchange heat in the battery stack (4) with heat on the user side through the heat exchange device (5).

The main body of each heat transfer medium delivery pipeline (108) is buried in the positive pole pile (1) or the negative pole pile (2), including: the heat transfer medium delivery pipeline (108) passes through the top cover plate (110) and is arranged inside the prefabricated pipe pile (111).

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

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

S1. Manufacture of prefabricated pipe piles;

S2. Construction of lower foundation structure:

S2.1. Drilling-pile driving;

S2.2. Connecting piles;

S2.3. Repeat S2.1 and S2.2 until the pile length reaches the designed length or the pile end is effectively embedded in the designed stratum;

S2.4. Desilting and bottom sealing;

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

S2.6. Sealing test and pile inspection;

S2.7. Heat transfer medium delivery pipeline (108) is arranged inside the pile;

S2.8. Inject electrolyte into the pile;

S2.9. Install the top cover (110);

S3. Construction of pile foundation superstructure;

S4. Construction of road surface heat exchange part;

S5. Installing the electrolyte delivery unit, the battery stack (4), and the inverter (6);

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

S14. Debugging.

S15. Run.

S1. The manufacture of prefabricated pipe piles includes: embedding grouting pipes in the pipe wall of the pipe piles while prefabricating the pipe piles in the factory; and performing anti-corrosion treatment on the inner wall of the pipe piles.

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

S2.1. Drilling and pile driving, comprising: connecting an expandable and retractable drill bit to a long spiral drill rod and entering the stratum to be piled through the inner cavity of a large-diameter pipe pile; driving the drill rod to drill, 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 pile driving resistance or a relatively small pile driving resistance; the residual soil generated by the drilling is brought out to the ground through the spiral blades on the long spiral drill rod in the inner cavity of the pipe pile.

S2.2. Pile connection, including: connecting the upper and lower sections of the pipe piles by welding and performing airtight treatment; the grouting pipes between the upper and lower sections of the pipe piles are connected by a high-strength aluminum-plastic pipe.

S2.4. Desilting and bottom sealing, including: after cleaning the debris 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.

S2.7. Arrange the heat transfer medium delivery pipeline (108) in the pile, including: setting internal supports in sections in the pile, and tying the heat transfer medium delivery pipeline (108) to the internal supports to fix the heat transfer medium delivery pipeline (108) and reduce its hanging weight.

S1. Manufacturing of prefabricated pipe piles and S2.7. Arranging a heat transfer medium delivery pipeline (108) in the piles, including: pre-burying the heat transfer medium delivery pipeline (108) in the pipe wall of the pipe piles while prefabricating the pipe piles in the factory.

S2.3. Repeat S2.1 and S2.2 until the pile length reaches the designed length or the pile end is effectively embedded in the designed stratum, further comprising: performing pile side grouting through a grouting pipe pre-buried in the wall of the pile.

S4. Construction of the road surface heat exchange part includes: first laying the insulation layer (502), then installing the heat exchange pipe, and finally laying the heat conductive material (501).

S11. Installing an electrolyte delivery unit, a battery stack (4), and an inverter (6), including: connecting the positive electrode piles (1) with an electrolyte delivery pipe (107), and connecting them to the positive electrode of the battery stack (4) through a circulation pump (301); connecting the negative electrode piles (2) with an electrolyte delivery pipe (107), and connecting them to the negative electrode of the battery stack (4) through a circulation pump (301); connecting the battery stack (4) with the inverter (6); and connecting the inverter (6) with a power source and a load.

All documents mentioned in this utility model are cited as references in this application, just as each document is cited as reference separately. In addition, it should be understood that after reading the above teaching content of the utility model, those skilled in the art can make various changes or modifications to the utility model, and these equivalent forms also fall within the scope defined by the claims attached to this application.

Claims (8)

1. An energy storage deicing system for roads and bridges, characterized in that the system comprises: an energy storage module, the energy storage module storing energy via a flow battery, comprising an electrolyte disposed underground; and A heat exchange module, the heat exchange module comprising an underground heat exchange pipe arranged in the electrolyte and a road surface heat exchange portion arranged under the road bridge, wherein the underground heat exchange pipe provides heat for the road surface heat exchange portion; The electrolyte is divided into a positive electrode electrolyte and a negative electrode electrolyte, the positive electrode electrolyte is contained in the positive electrode pile, and the negative electrode electrolyte is contained in the negative electrode pile; The positive electrode electrolyte in the positive electrode pile and the negative electrode electrolyte in the negative electrode pile are respectively transported to the battery stack through electrolyte transport units to react. 2. The system as described in claim 1 is characterized in that the electrolyte transport unit also includes a replenishment device, and the replenishment device is used to replenish the electrolyte or withdraw the electrolyte. 3. The system as described in claim 1 is characterized in that the diameter of the positive electrode pile or the negative electrode pile is greater than 600 mm; the inner wall is corrosion-resistant and has a bearing capacity of more than 1,200 tons. 4. The system according to claim 1, characterized in that the charging and discharging reaction of the energy storage module is: 5 . The system according to claim 1 , wherein the positive electrode pile or the negative electrode pile comprises a prefabricated pipe pile, a pile shoe, a bottom seal and a top cover plate. 6. The system according to claim 1, characterized in that the road surface heat exchange portion includes a heat exchange tube laid under the road surface, a heat conductive layer in contact with the upper surface of the heat exchange tube, and a thermal insulation layer in contact with the lower surface of the heat exchange tube. 7. The system as described in claim 1 is characterized in that the heat exchange module also includes an electric heating part, and the electric heating part generates heat to the road surface heat exchange part by generating heat through the electric energy generated by the liquid flow battery or the electric energy supplied by an external power source. 8. The system as claimed in claim 1 is characterized in that the system includes an integrated management and control unit, which controls both the charging and discharging of the battery stack and the heat exchange between the positive electrode pile or the negative electrode pile and the heat exchange part of the road surface.