Supporting and retaining system integrating source, network, load and storage and construction and installation method of supporting and retaining system

Abstract

The invention relates to a source-network-load-storage integrated supporting and retaining system which comprises a positive pole pile, a negative pole pile, an electric pile, a road surface heat exchange system and a photoelectric wall surface. The system further comprises a heat exchange unit, an electrolyte conveying unit, a heat transfer medium conveying unit, a valve system and a comprehensive management and control unit. Wherein the positive pole and the negative pole are structural poles capable of accommodating a positive electrolyte and a negative electrolyte respectively; the photoelectric wall surface is connected with the positive pole and the negative pole, and has supporting and power generation functions; the galvanic pile is configured to enable the positive electrolyte and the negative electrolyte to react in the galvanic pile to achieve the purpose of charging and discharging; the electrolyte conveying unit is configured to form a fluid passage between the positive (negative) pole pile and the electric pile; the heat transfer medium conveying unit is configured to form a fluid passage between the pile and the heat exchange unit; and communicating the road surface heat exchange system with the heat exchange unit to form a fluid passage between the road surface heat exchange system and the heat exchange unit. According to the invention, optimized utilization and space-time distribution of energy are realized.

Description

Technical Field

[0001] This application relates to the field of integration of transportation and energy, and particularly to a retaining system for integrated source-network-load-storage and its construction and installation method. Background Art

[0002] Carbon emissions in transportation account for about 10.4% of the total carbon emissions in China (among which road transportation is the main part, accounting for more than 85% of the total carbon emissions in transportation in the country), and it is one of the main "carbon sources" in China.

[0003] Currently, the main implementation path for the integration of the transportation network and the energy network is: deploying new energy facilities such as solar power generation and wind power generation along the transportation road network and connecting them to the power grid. Although the transportation network and the energy network can be integrated to a certain extent, from the perspective of deep integration, there are still many limitations and deficiencies. It is mainly manifested in the following aspects:

[0004] ① Energy supply volatility: New energy power generation is volatile and affected by factors such as weather, resulting in unstable energy production. Relying solely on the new energy facilities along the transportation network may not be able to meet the continuous and stable power demand.

[0005] ② Limited to energy supply: The new energy facilities deployed along the line can provide some electricity for transportation facilities and surrounding areas, but the content of the integration is limited to the one-way injection of energy and does not cover broader transportation and energy demands.

[0006] ③ Insufficient utilization of transportation facilities: Deep integration requires more fully incorporating transportation infrastructure such as bridges and tunnels into the integration system and transforming them into part of energy generation, storage, and distribution.

[0007] ④ Failure to consider the spatio-temporal variation characteristics of the power demand of the transportation network: The power demand of the transportation network varies due to factors such as traffic flow, time, and season. When the single new energy facility cannot supply enough energy, it will still cause great pressure on the power grid.

[0008] In summary, the deep integration of transportation and energy requires more levels of integration, organically combining multiple elements such as transportation, energy, and infrastructure, and proposing new solutions and application scenarios. Summary of the Invention

[0009] This application discloses a retaining system for integrated source-network-load-storage, including: a positive pole pile, a negative pole pile, an electric stack, a road surface heat exchange system, and a photoelectric wall; it also includes a heat exchange unit, an electrolyte delivery unit, a heat transfer medium delivery unit, a valve system, and a comprehensive control unit; wherein,

[0010] The positive pole pile and / or the negative pole pile is a structural pile capable of accommodating positive / negative electrolyte inside.

[0011] The optoelectronic wall is connected to the positive pile and / or the negative pile, one side of which is used for retaining soil, and at least one side is configured to capture solar energy and convert it into electrical energy;

[0012] The stack is respectively connected to the electrical energy on the power supply side and the load on the user side, and is configured to cause the positive electrolyte and the negative electrolyte to react inside it, realizing the mutual conversion of chemical energy and electrical energy, and achieving the purpose of charging and / or discharging;

[0013] The electrolyte delivery unit is configured to form a positive pile - stack - positive pile fluid passage and a negative pile - stack - negative pile fluid passage respectively;

[0014] The heat transfer medium delivery unit is configured to:

[0015] - Connect one or more positive piles and / or one or more negative piles, and form a fluid passage of positive pile - valve system - heat exchange unit - valve system - positive pile, and / or a fluid passage of negative pile - valve system - heat exchange unit - valve system - negative pile; and

[0016] - Connect the road surface heat exchange system to the heat exchange unit to form a fluid passage of road surface heat exchange system - valve system - heat exchange unit - valve system - road surface heat exchange system;

[0017] The comprehensive control unit is configured to control the charging and / or discharging of the stack, and control the heat in the positive pile and / or negative pile to exchange heat with the heat in the road surface heat exchange system through the heat exchange unit.

[0018] In a preferred example, the positive pile or negative pile includes: a precast pipe pile, a bottom seal body, and a top cover plate.

[0019] In a preferred example, the inner wall of the precast pipe pile has corrosion resistance; the diameter d tube of the precast pipe pile ranges from d tube ≥500 mm; and / or

[0020] The bearing capacity τ of the precast pipe pile ranges from τ≥800 tons.

[0021] In a preferred example, the precast pipe pile further includes: a grouting conduit embedded in the inner wall, a slurry outlet provided at the bottom, and a grouting port provided on the side wall; wherein, the slurry outlets and grouting ports between different pipe piles are connected by end joints.

[0022] In a preferred example, the heat exchange unit includes a compressor, an evaporator, a condenser, an expansion valve, and a pipeline system.

[0023] In a preferred embodiment, the electrolyte delivery unit includes an electrolyte delivery pipeline and a first circulation pump; wherein, the electrolyte delivery pipeline penetrates through the positive electrode pile and / or the negative electrode pile and forms a circulation path with the fuel cell stack; the first circulation pump enables the electrolyte to circulate in the electrolyte delivery pipeline.

[0024] In a preferred embodiment, the heat transfer medium delivery unit includes a heat transfer medium delivery pipeline and a second circulation pump; wherein, the main body of the heat transfer medium delivery pipeline is buried in the positive electrode pile and / or the negative electrode pile and forms a circulation path with the heat exchange unit through a valve system; the second circulation pump enables the heat transfer medium to circulate in the heat transfer medium delivery pipeline.

[0025] In a preferred embodiment, the road surface heat exchange system includes heat exchange pipes laid under the road surface, a heat conduction layer, a heat insulation layer, and a temperature-stress sensor; wherein, the heat conduction layer and the heat insulation layer are respectively in contact with the upper surface and the lower surface of the heat exchange pipes.

[0026] In a preferred embodiment, the heat conduction layer includes: a cementitious material containing calcium carbonate, or a solidified body formed by microbial-induced calcium carbonate precipitation.

[0027] In a preferred embodiment, the electrolyte delivery unit further includes a heat exchange device, which is arranged on the electrolyte delivery pipeline and is used for exchanging heat in the fuel cell stack with the heat on the user side through the heat exchange device.

[0028] In a preferred embodiment, the electric energy on the power supply side is selected from any one or more of the following: electric energy provided by the power grid, photovoltaic power, and wind power.

[0029] In a preferred embodiment, the photovoltaic wall includes: a retaining wall body composed of a reinforced concrete wall body main body, embedded photovoltaic elements, drainage holes, and drainage pipes.

[0030] In a preferred embodiment, the embedded photovoltaic elements are fixed to the wall surface by one or more of the following methods: bolt fixing, hook or hanging fixing.

[0031] In a preferred embodiment, the embedded photovoltaic elements are fixed to the photovoltaic wall through a movable bracket or frame, and the movable bracket or frame is configured to control its tilt angle through the integrated management and control unit.

[0032] The present application also discloses a construction and installation method for a retaining system integrating the power grid, load, and energy storage, including the following steps:

[0033] (S1) Manufacturing precast pipe piles;

[0034] (S2) Constructing the lower foundation structure, which includes:

[0035] (S2-1) Drilling - pile sinking;

[0036] (S2-2) Pile splicing;

[0037] (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;

[0038] (S2-4) Silt cleaning and bottom sealing;

[0039] (S2-5) Repeat (S2-1) to (S2-4) until all pile foundation construction is completed;

[0040] (S2-6) Sealing test and pile body inspection;

[0041] (S2-7) Arrange heat transfer medium conveying pipelines inside the pile;

[0042] (S2-8) Inject electrolyte into the pile;

[0043] (S2-9) Install the top cover plate (110);

[0044] (S3) Construction of the superstructure of the pile foundation, including:

[0045] (S3-1) Construction of the main body of the optoelectronic wall surface;

[0046] (S3-2) Construction of the drainage system;

[0047] (S3-3) Installation of the optoelectronic wall surface;

[0048] (S4) Construction of the road surface heat exchange system;

[0049] (S5) Install the electrolyte conveying unit, the stack, and the inverter, where the inverter is used to connect the stack with the electrical energy on the external power supply side and the load on the user side;

[0050] (S6) Connect each device to the integrated control unit;

[0051] (S7) Commissioning and operation.

[0052] In a preferred example, the (S5) further includes: connecting multiple positive poles of the pile with electrolyte conveying pipelines and accessing the positive pole of the stack through the first circulation pump;

[0053] Connect multiple negative poles of the pile with electrolyte conveying pipelines and access the negative pole of the stack through the first circulation pump;

[0054] Connect the stack with the inverter; connect the inverter with the power supply and the load.

[0055] In a preferred example, it is characterized in that, (S1) further includes: while prefabricating pipe piles in the factory, embedding grouting pipes in the pipe wall of the pipe piles; and performing anti-corrosion treatment on the inner wall of the pipe piles.

[0056] The present application discloses a source-network-load-storage integrated retaining system, including: a positive electrode pile, a negative electrode pile, an electrolyte delivery unit, an electric stack, a road surface heat exchange system, an inverter, a valve system, a heat exchange unit, a heat transfer medium delivery unit, an integrated control unit, and a photovoltaic wall.

[0057] The positive electrode pile is a large-diameter pipe pile capable of storing positive electrode electrolyte inside;

[0058] The negative electrode pile is a large-diameter pipe pile capable of storing negative electrode electrolyte inside;

[0059] The electrolyte delivery unit is composed of an electrolyte delivery pipeline and a circulation pump;

[0060] The electric stack can make the positive electrode electrolyte and the negative electrode electrolyte react inside it, realizing the mutual conversion between chemical energy and electrical energy;

[0061] The road surface heat exchange system is composed of heat exchange pipes laid under the road surface, temperature-stress sensors, a heat conduction layer in contact with the upper surface of the heat exchange pipes, and a heat insulation layer in contact with the lower surface of the heat exchange pipes;

[0062] The heat transfer medium delivery unit is composed of a heat transfer medium delivery pipeline and a circulation pump;

[0063] The electrolyte delivery unit connects one or more of the positive electrode piles (negative electrode piles) using the electrolyte delivery pipeline, then connects to the electric stack, and uses the circulation pump to make the positive electrode electrolyte (negative electrode electrolyte) circulate in the positive electrode pile (negative electrode pile) and the electric stack, realizing the storage and release of electrical energy;

[0064] The electric stack is externally connected to the electrical energy on the power supply side and the load on the user side through the inverter;

[0065] In the heat transfer medium delivery unit, the main bodies of the heat transfer medium delivery pipelines are buried in the positive electrode pile or the negative electrode pile, and both ends are respectively connected to both sides of the heat exchange unit through the valve system, and the circulation pump is used to make the heat transfer medium circulate in the heat transfer medium delivery pipeline, realizing the heat exchange between the heat in the positive electrode pile or the negative electrode pile and the heat in the heat exchange unit.

[0066] The photovoltaic wall is connected to the positive electrode pile or the negative electrode pile, and one side is used for retaining soil, and the other side can capture solar energy and convert it into electrical energy.

[0067] The integrated management and control unit is composed of a software system, sensors, controllers and instruments, etc. It can not only control the charging and discharging of the battery stack, but also allow the heat in the positive electrode pile or the negative electrode pile to be exchanged with the heat in the road surface heat exchange system through the heat exchange unit.

[0068] In a preferred example, it is characterized in that the positive electrode pile or the negative electrode pile is composed of a prefabricated pipe pile, a pile shoe, a bottom seal and a top cover plate.

[0069] The present application also discloses an integrated source-grid-load-storage support system, characterized in that the diameter of the prefabricated pipe piles can be greater than 800 mm, the inner wall is corrosion-resistant, and the bearing capacity can reach more than 1,000 tons.

[0070] In a preferred example, it is characterized in that the prefabricated pipe pile further includes: a grouting conduit is pre-buried in the inner wall, a grouting outlet is arranged at the bottom, a grouting outlet is arranged on the side wall, and they are connected by end heads.

[0071] The present application also discloses a source-grid-load-storage integrated support system, which is characterized in that the top cover plate has anti-corrosion properties and is provided with holes through which the electrolyte delivery pipeline and the heat transfer medium delivery pipe can pass.

[0072] The present application also discloses a source-grid-load-storage integrated support system, characterized in that the heat exchange unit is composed of a compressor, an evaporator, a condenser, an expansion valve and a pipeline system.

[0073] In a preferred example, it is characterized in that the heat exchange tube laid under the road surface further includes: the periphery of the heat exchange tube is filled with a shaped phase change heat storage material.

[0074] In a preferred embodiment, it is characterized in that the heat conductive 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.

[0075] In a preferred example, it is characterized in that 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.

[0076] In a preferred example, it is characterized in that the electrolyte delivery unit further includes: a heat exchange device is arranged on the electrolyte delivery pipeline, and the heat in the battery stack can be exchanged with the heat on the user side through the heat exchange device.

[0077] In a preferred example, it is characterized in that the main body of each heat transfer medium delivery pipeline is buried in the positive pole pile or the negative pole pile, including: after the heat transfer medium delivery pipeline passes through the top cover plate, it is arranged inside the prefabricated pipe pile.

[0078] In a preferred embodiment, the electric energy on the power supply side is characterized by including the electric energy provided by the power grid, photovoltaics, and wind power.

[0079] In a preferred embodiment, the photovoltaic wall is characterized by including a retaining wall body composed of a reinforced concrete wall body main body, embedded photovoltaic elements, drainage holes, and drain pipes.

[0080] In a preferred embodiment, the connection of the photovoltaic wall to the positive pile or the negative pile includes: ① Socket connection: The upper part of the pile is designed with a socket into which the photovoltaic wall can be directly inserted. ② Bolt connection: Holes are reserved on the main bodies of the pile and the photovoltaic wall, and then bolts and nuts are used for fixation. ③ Welding connection: The photovoltaic wall is directly welded to the pile. ④ Prestressed connection: Prestressing tendons or other prestressed materials are used to connect the main body of the photovoltaic wall to the pile.

[0081] In a preferred embodiment, the ability to capture solar energy and convert it into electric energy on the other side includes fixing the photovoltaic elements to the wall surface in the following ways: ① Bolt fixation: Holes are reserved on the elements and the outer wall, and the elements are firmly fixed to the outer wall through bolts and nuts. ② Fixation with brackets or frames: Brackets or frames are installed and the photovoltaic elements are fixed thereto. ③ Fixation with hooks or hangers: Hooks or hangers are used to hang the photovoltaic elements on the exterior wall of the building.

[0082] In a preferred embodiment, the ability to capture solar energy and convert it into electric energy on the other side includes fixing the photovoltaic elements to the wall surface through a rotatable bracket and being able to control the tilt angle thereof by the integrated management and control unit.

[0083] This application also discloses a construction and installation method for a source-grid-load-storage integrated retaining system, including the following steps:

[0084] S1. Manufacture of precast pipe piles;

[0085] S2. Construction of the lower foundation structure:

[0086] S2.1. Drilling - pile sinking;

[0087] S2.2. Pile splicing;

[0088] 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 stratum;

[0089] S2.4. Silt cleaning and bottom sealing;

[0090] S2.5. Repeat S2.1 to S2.4 until all pile foundation construction is completed;

[0091] S2.6. Sealing test and pile body inspection;

[0092] S2.7. Arrange heat transfer medium conveying pipes inside the pile;

[0093] S2.8. Inject electrolyte into the pile;

[0094] S2.9. Install the top cover plate;

[0095] S3. Construction of the upper structure of the pile foundation:

[0096] S3.1 Construction of the main body of the optoelectronic wall surface;

[0097] S3.2 Construction of the drainage system;

[0098] S3.3 Installation of the optoelectronic wall surface;

[0099] S4. Construction of the road surface heat exchange system;

[0100] S5. Install the electrolyte delivery unit, the fuel cell stack, and the inverter;

[0101] S13. Connect each device to the integrated management and control unit;

[0102] S14. Commissioning.

[0103] S15. Operation.

[0104] In a preferred example, it is characterized in that the manufacturing of the precast pipe pile in S1 includes: while precasting the pipe pile in the factory, embedding the grouting pipe in the pipe wall of the pipe pile; performing anti-corrosion treatment on the inner wall of the pipe pile.

[0105] In a preferred example, it is characterized in that the grouting pipe includes an aluminum-plastic pipe with an inner diameter of 20 mm and a wall thickness of 4 mm.

[0106] In a preferred example, it is characterized in that the S2.1. Drilling - pile sinking includes: connecting the expandable - contractible drill bit to the long - flight auger rod and entering the formation where the pile is to be sunk through the inner cavity of the large - diameter pipe pile; driving the drill rod to drill, 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 rod in the inner cavity of the pipe pile.

[0107] In a preferred example, it is characterized in that the S2.2. Pile splicing includes: connecting the upper and lower sections of the pipe pile by welding and performing airtightness treatment; connecting the grouting pipes between the upper and lower sections of the pipe pile through high - strength aluminum - plastic pipes.

[0108] In a preferred example, it is characterized in that 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.

[0109] In a preferred example, it is characterized in that a heat transfer medium delivery pipeline is arranged inside the S2.7. pile, including: internal supports are set up in sections inside 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.

[0110] In a preferred example, it is characterized in that said 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, further comprising: performing pile side grouting through a grouting pipe pre-buried in the pipe wall of the pipe pile.

[0111] In a preferred example, it is characterized in that the construction of the S4. road surface heat exchange system includes: first laying (502) an insulation layer, then installing heat exchange pipes, and finally laying (501) a heat conduction layer.

[0112] In a preferred example, it is characterized in that S11. installing the electrolyte delivery unit, the fuel cell stack, and the inverter, including: connecting the positive electrode piles with an electrolyte delivery pipeline, 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 pipeline, 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.

[0113] This application has at least the following technical effects:

[0114] (1) The present invention organically combines new energy, power grid, energy storage system and traditional civil engineering to achieve optimal utilization of energy. The energy storage system balances energy fluctuations and stores excess energy for use when it is insufficient, thereby improving energy utilization efficiency.

[0115] (2) Innovatively integrate energy storage into the pile foundation of the retaining structure, and integrate photovoltaics into the walls of the retaining structure, while deriving moisture-proof and de-icing functions. This eliminates the need to find additional land to build photovoltaic and energy storage systems, and eliminates the need to drill additional geothermal holes, greatly conserving land and enriching its use functions.

[0116] (3) The heat of the electrolyte in the retaining wall pile foundation and the heat of the underground rock and soil are innovatively extracted to prevent the road from freezing. While achieving the charging and discharging functions, it can also meet the needs of road anti-icing and de-icing, with good economic benefits.

[0117] The specification of this application records a large number of technical features, which are distributed in various technical solutions. If all possible combinations of technical features (i.e., technical solutions) of this application were to be listed, the specification would become overly lengthy. To avoid this problem, each of the technical features disclosed in the above-mentioned invention content of this application, each of the technical features disclosed in the following embodiments and examples, and each of the technical features disclosed in the drawings can be freely combined with each other to form various new technical solutions (all of these technical solutions should be regarded as having been recorded in this specification), unless such a combination of technical features is technically infeasible. For example, in one example, features A+B+C are disclosed, and in another example, features A+B+D+E are disclosed. Features C and D are equivalent technical means that perform the same function, and only one of them can be used technically and it is impossible to use both simultaneously. Feature E can be combined with feature C technically. Then, the solution of A+B+C+D should not be regarded as having been recorded because it is technically infeasible, while the solution of A+B+C+E should be regarded as having been recorded. Description of the Drawings

[0118] Figure 1 It is a schematic diagram of the retaining system for the integration of the power grid, power sources, loads, and energy storage according to this application;

[0119] Figure 2 It is a schematic diagram of the structure of a single pile foundation;

[0120] Figure 3 It is a schematic diagram of the cross-section of the pile foundation;

[0121] Figure 4 It is a schematic diagram of the road surface heat exchange system;

[0122] Figure 5 It is a schematic diagram of the main structure;

[0123] Figure 6 It is a schematic diagram of the connection between the positive / negative poles of the pile and the optoelectronic wall surface (pile-plate type);

[0124] Figure 7 It is a schematic diagram of the connection between the positive / negative poles of the pile and the optoelectronic wall surface (up-and-down type).

[0125] Description of the Reference Numerals:

[0126] 1 - Positive pole of the pile; 2 - Negative pole of the pile; 3 - Electrolyte delivery unit; 4 - Stack; 5 - Road surface heat exchange system; 6 - Inverter; 7 - Valve system; 8 - Heat exchange unit; 9 - Comprehensive control unit; 10 - Optoelectronic wall surface; 11 - Heat transfer medium delivery unit.

[0127] 111 - Prefabricated pipe pile, 101 - Pile shoe, 102 - Bottom seal; 103 - Grout outlet; 105 - Grouting port; 106 - Grouting conduit; 107 - Electrolyte delivery pipeline; 108 - Heat transfer medium delivery pipeline; 109 - End; 110 - Top cover plate; 1081 - Spiral heat exchange part 1082 - Special joint;

[0128] 301 - First circulation pump; 302 - Second circulation pump;

[0129] 501 - Heat conducting layer; 502 - Thermal insulation layer; 503 - Temperature - stress sensor. Specific implementation manners

[0130] In the following description, many technical details are presented for the reader to better understand the present application. However, those of ordinary skill in the art can understand that the technical solutions claimed in the present application can be implemented even without these technical details and various changes and modifications based on the following embodiments.

[0131] Term

[0132] As used herein, "retaining system" and "system" can be used interchangeably, both referring to the retaining system of the integrated source - grid - load - storage of the present application.

[0133] Source - grid - load - storage

[0134] Source: Power generation; specifically refers to the power generation function of the photovoltaic wall in the present application;

[0135] Grid: Power transmission; specifically refers to being connected to both the power grid and the photovoltaic in the present application;

[0136] Load: Power consumption; specifically refers to the load for road surface heat exchange or power supply to transportation in the present application;

[0137] Storage: Energy storage; specifically refers to energy storage in the electrode pile in the present application.

[0138] The following briefly describes some innovative points of the embodiments of the present application:

[0139] Integrated source - grid - load - storage retaining system

[0140] The integrated source - grid - load - storage retaining system of the present application is as Figure 1 shown, and includes: positive electrode pile 1, negative electrode pile 2, stack 4, road surface heat exchange system, photovoltaic wall 10; and also includes heat exchange unit 8, electrolyte delivery unit 3, heat transfer medium delivery unit 11, and comprehensive control unit 9.

[0141] 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 positive electrode pile and / or the negative electrode pile are both load - bearing structural piles for energy storage.

[0142] The stack 4 enables the positive electrolyte and the negative electrolyte to react inside it, realizing the mutual conversion between chemical energy and electrical energy. The positive terminal pile 1, the negative terminal pile 2 and the stack 4 are connected by the electrolyte delivery unit 3, and the electrolyte delivery unit 3 includes an electrolyte delivery pipeline 107 and a first circulation pump 301. The electrolyte delivery unit 3 is configured to fluidly connect multiple positive terminal piles and fluidly connect multiple negative terminal piles: the electrolyte delivery pipeline 107 passes through each positive terminal pile and / or negative terminal pile, and the first circulation pump 301 causes the electrolyte to circulate in the electrolyte delivery pipeline, forming a circulation path with the stack, that is, respectively forming a stack - positive terminal pile - stack fluid path and a stack - negative terminal pile - stack fluid path.

[0143] In an alternative embodiment, the positive terminal pile and / or the negative terminal pile includes a precast pipe pile 111, a pile shoe 101, a bottom seal 102 and a top cover plate 110, as Figure 2 shown. 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 1000 tons. The precast pipe pile 111 further includes: a grouting conduit 106 is embedded in the inner wall, a grout outlet 103 is provided at the bottom, a grouting port 105 is provided on the side wall, and it is connected by a 109 end connection. The top cover plate 110 has corrosion resistance and is provided with holes through which the 107 electrolyte delivery pipeline and the heat transfer medium delivery pipe can pass.

[0144] In an alternative embodiment, the stack 4 is respectively connected to the electrical energy on the power supply side and the load on the user side through an inverter 6. In an alternative embodiment, the electrical energy on the power supply side is selected from any one or more of the following: electrical energy provided by the power grid, photovoltaic, and wind power.

[0145] The heat transfer medium delivery unit 11 is used to realize the heat exchange between the heat in the positive terminal pile and the negative terminal pile and the heat in the heat exchange unit 8, and includes: a heat transfer medium delivery pipeline 108 and a second circulation pump 302. Among them, the main body of the heat transfer medium delivery pipeline 108 is buried in the positive terminal pile 1 and / or the negative terminal pile 2, and forms a circulation path with the heat exchange unit 8 through a valve system 7; the second circulation pump 302 causes the heat transfer medium to circulate in the heat transfer medium delivery pipeline 108. The heat transfer medium delivery unit 11 is configured to form a heat exchange unit - positive terminal pile - heat exchange unit fluid path and a heat exchange unit - negative terminal pile - heat exchange unit fluid path.

[0146] In an alternative embodiment, the heat exchange unit 8 includes a compressor, an evaporator, a condenser, an expansion valve and a pipeline system.

[0147] The road surface heat exchange system 5 includes heat exchange pipes laid under the road surface, temperature-stress sensors 503, a heat conduction layer 501 in contact with the upper surface of the heat exchange pipes, and a heat insulation layer 502 in contact with the lower surface of the heat exchange pipes. In an alternative preferred example, the heat conduction layer includes: a cementitious material containing calcium carbonate, or a solidified body formed by microbial-induced calcium carbonate precipitation. In another alternative preferred example, the heat insulation layer includes: a cementitious material obtained from solid waste containing silicon and aluminum under excitation conditions. In an alternative embodiment, the periphery of the heat exchange pipes is filled with a shaped phase change heat storage material.

[0148] A heat exchange device (5) is arranged on the electrolyte delivery pipeline (107), and the heat in the stack (4) can be exchanged with the heat on the user side through the heat exchange device (5).

[0149] The photovoltaic wall 10 is connected to the positive pile and / or the negative pile. One side of it is used for retaining soil, and at least one side is configured to capture solar energy and convert it into electrical energy. The photovoltaic wall 10 includes: a retaining wall body composed of a reinforced concrete wall body, embedded photovoltaic elements, drain holes, and drain pipes. In an alternative implementation, the photovoltaic wall is connected to the positive pile 1 or the negative pile 2, including: ① Socket connection: The upper part of the pile is designed with a socket, and the photovoltaic wall can be directly inserted. ② Bolt connection: Holes are reserved on the pile and the main body of the photovoltaic wall, and then bolts and nuts are used for fixation. ③ Welding connection: The photovoltaic wall is directly welded to the pile. ④ Prestressed connection: The main body of the photovoltaic wall is connected to the pile using prestressed tendons or other prestressed materials.

[0150] The photovoltaic wall captures solar energy through the embedded photovoltaic elements and converts it into electrical energy. The embedded photovoltaic elements can be fixed to the photovoltaic wall in various ways. In an alternative implementation, the fixing methods include: fixing the embedded photovoltaic elements to the wall surface in the following ways, namely ① Bolt fixing: Holes are reserved on the element and the outer wall, and the element is firmly fixed to the outer wall through bolts and nuts. ② Bracket or frame fixing: Install brackets or frames and fix the photovoltaic elements on them. ③ Hook or hanging fixing: Use hooks or hangings to hang the photovoltaic elements on the exterior wall of the building.

[0151] In another alternative implementation, the embedded photovoltaic elements are fixed to the wall surface through a rotatable bracket and the tilt angle thereof can be controlled by the integrated management and control unit 9.

[0152] The integrated management and control unit 9 is configured to control the charging and / or discharging of the stack, and control the heat in the positive pile and / or the negative pile to exchange heat with the heat in the road surface heat exchange system through the heat exchange unit.

[0153] This application also provides a construction and installation method for a source-network-load-storage integrated retaining system. The method mainly includes the following steps:

[0154] (S1) Manufacture precast pipe piles. In an advantageous embodiment, while the precast pipe piles are manufactured in the factory, grouting pipes are embedded in the pipe wall of the pipe piles; the inner wall of the pipe piles is subjected to anti-corrosion treatment. The grouting pipe comprises an aluminum-plastic pipe with an inner diameter of 20 mm and a wall thickness of 4 mm.

[0155] (S2) Construct the lower foundation structure. In an advantageous embodiment, (S2) further includes:

[0156] S2.1. Drilling - pile sinking; Connect the expandable - contractible drill bit to the long - flight auger rod and enter the formation where the pile is to be sunk through the inner cavity of the large - diameter pipe pile; Drive the drill rod to drill holes. 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 - flight auger rod in the inner cavity of the pipe pile.

[0157] S2.2. Pile splicing; Includes: connecting the upper and lower sections of the pipe piles by welding and performing airtightness treatment; The grouting pipes between the upper and lower sections of the pipe piles are connected through high - strength aluminum - plastic pipes.

[0158] S2.3. Repeat S2.1 and S2.2 until the pile length reaches the design length or the pile tip effectively embeds into the design formation; In an advantageous embodiment, it further includes: performing side grouting of the pile through the grouting pipes embedded in the pipe wall.

[0159] 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.

[0160] S2.5. Repeat S2.1 to S2.4 until all pile foundation construction is completed;

[0161] S2.6. Sealing test and pile body inspection;

[0162] S2.7. Arrange heat - transfer medium conveying pipes inside the pile; Includes: arranging internal supports in sections inside the pile and binding the heat - transfer medium conveying pipes to the internal supports for fixing the heat - transfer medium conveying pipes and reducing their hanging gravity.

[0163] S2.8. Inject electrolyte into the pile;

[0164] S2.9. Install the top cover plate.

[0165] (S3) Construct the superstructure of the pile foundation; In an advantageous embodiment, (S3) further includes:

[0166] S3.1. Construct the main body of the photovoltaic wall surface;

[0167] S3.2 Drainage system construction;

[0168] S3.3 Photovoltaic wall installation.

[0169] (S4) Construction of road surface heat exchange system In an advantageous embodiment, the heat insulation layer 502 is laid first, then the heat exchange pipes are installed, and finally the heat conduction layer 501 is laid.

[0170] (S5) Installing an electrolyte delivery unit, a battery stack, and an inverter, wherein the inverter is used to connect the battery stack with the electric energy on the external power supply side and the load on the user side. In a favorable embodiment, it includes: connecting each positive electrode pile 1 with an electrolyte delivery pipeline and connecting it to the positive electrode of the battery stack 4 through a circulation pump; connecting each negative electrode pile 2 with an electrolyte delivery pipeline and connecting it to the negative electrode of the battery stack 4 through a circulation pump; connecting the battery stack 4 with the inverter 6; connecting the inverter 6 with the power supply and the load.

[0171] (S6) Connect each device to the integrated management and control unit.

[0172] (S7) Debugging and operation.

[0173] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0174] Example

[0175] The integrated support system of source, grid, load and storage in this example is as follows Figure 1 As shown, it includes: multiple positive electrode piles 1, multiple negative electrode piles 2, a battery stack, a road surface heat exchange system, and a photovoltaic wall; it also includes a heat exchange unit, an electrolyte delivery unit, a heat transfer medium delivery unit, and a comprehensive management and control unit.

[0176] The positive electrode pile 1 and the negative electrode pile 2 are large diameter pipe piles capable of storing positive electrode electrolyte and negative electrode electrolyte respectively. The pile comprises a prefabricated pipe pile 111, a pile shoe 101, a bottom sealing body 102 and a top cover plate 110, as shown in FIG. Figure 2 As shown. The diameter of the prefabricated pipe pile 111 is 1000 mm, the inner wall is corrosion-resistant, and the bearing capacity can reach 2000 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 connected by a terminal 109. The top cover plate 110 has corrosion-resistant properties and is reserved with holes, allowing the electrolyte delivery pipeline 107 and the heat transfer medium delivery pipeline 107 to pass through the holes.

[0177] The positive electrode pile 1, the negative electrode pile 2 and the stack 4 are connected by the electrolyte delivery unit 3, and the electrolyte delivery unit 3 includes an electrolyte delivery pipeline 107 and a first circulation pump 301. The electrolyte delivery unit 3 is configured to fluidly connect multiple positive electrode piles and fluidly connect multiple negative electrode piles: the electrolyte delivery pipeline 107 passes through each positive electrode pile and / or negative electrode pile, and the first circulation pump 301 causes the electrolyte to circulate in the electrolyte delivery pipeline, forming a circulation path with the stack, that is, respectively forming a stack - positive electrode pile - stack fluid path and a stack - negative electrode pile - stack fluid path. The stack 4 is respectively connected to the electric energy on the power supply side and the load on the user side through an inverter 6. In an alternative embodiment, the power supply side provides electric energy through photovoltaic power generation.

[0178] The heat transfer medium delivery unit 11 is used to achieve heat exchange between the heat in the positive electrode pile and the negative electrode pile and the heat in the heat exchange unit 8, and includes: a heat transfer medium delivery pipeline 108 and a second circulation pump 302. Among them, the main body of the heat transfer medium delivery pipeline 108 is buried in the positive electrode pile 1 and / or the negative electrode pile 2, and forms a circulation path with the heat exchange unit 8 through a valve system 7; the second circulation pump 302 causes the heat transfer medium to circulate in the heat transfer medium delivery pipeline 108. The heat exchange unit 8 includes a compressor, an evaporator, a condenser, an expansion valve and a pipeline system. The heat transfer medium delivery unit 11 is configured to form a heat exchange unit - positive electrode pile - heat exchange unit fluid path and a heat exchange unit - negative electrode pile - heat exchange unit fluid path.

[0179] The road surface heat exchange system 5 includes heat exchange pipes laid under the road surface, temperature - stress sensors 503, a heat conduction layer 501 in contact with the upper surface of the heat exchange pipes, and a heat insulation layer 502 in contact with the lower surface of the heat exchange pipes. The heat conduction layer includes a solidified body formed by microbial - induced calcium carbonate precipitation. The heat insulation layer includes a cementitious material obtained from solid waste containing silicon and aluminum under excitation conditions.

[0180] An (5) heat exchange device is arranged on the (107) electrolyte delivery pipeline, and the heat in the (4) stack can be exchanged with the heat on the user side through the (5) heat exchange device.

[0181] The photovoltaic wall 10 is connected to the positive electrode pile and / or the negative electrode pile. One side is used for retaining soil, and at least one side is configured to capture solar energy and convert it into electric energy. The photovoltaic wall 10 includes a retaining wall body composed of a reinforced concrete wall body main body, embedded photovoltaic elements, drainage holes and drainage pipes. The photovoltaic wall is connected to the positive electrode pile 1 or the negative electrode pile 2 by means of a slot connection. Slots are designed at the upper part of the pile, and the photovoltaic wall can be directly inserted.

[0182] The photovoltaic wall captures solar energy through embedded photovoltaic elements and converts it into electrical energy. The embedded photovoltaic elements can be fixed to the photovoltaic wall in various ways. The embedded photovoltaic elements are fixed to the wall through a rotatable bracket, and the comprehensive control unit 9 can control the tilt angle thereof.

[0183] The comprehensive control unit 9 is configured to control the charging and / or discharging of the battery stack, and control the heat in the positive terminal and / or negative terminal to exchange heat with the heat in the road surface heat exchange system through the heat exchange unit.

[0184] It should be noted that in the application documents 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 such 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 including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including one" does not exclude the existence of additional identical elements in the process, method, article or device including the element. In the application documents of this patent, if it is mentioned that an act is performed according to a certain element, it means that the act is performed at least according to the element, including two cases: performing the act only according to the element and performing the act according to the element and other elements. Expressions such as multiple, multiple times, multiple types, etc. include 2, 2 times, 2 types, as well as more than 2, more than 2 times, more than 2 types.

[0185] This specification includes combinations of various embodiments described herein. A separate reference to "an embodiment" or a particular embodiment, etc. does not necessarily refer to the same embodiment; however, unless indicated as mutually exclusive or clearly understood by those skilled in the art to be mutually exclusive, these embodiments are not mutually exclusive. It should be noted that, unless the context clearly indicates or requires otherwise, the word "or" is used in a non-exclusive sense in this specification.

[0186] All documents mentioned in this application are considered to be integrally included in the disclosure of this application so that they can be used as a basis for modification when necessary. In addition, it should be understood that after reading the above disclosure of this application, those skilled in the art can make various changes or modifications to this application, and these equivalent forms also fall within the scope claimed by this application.

Claims

1. A retaining system for integrated power generation, grid, load and energy storage, characterized in that, it includes: a positive electrode pile, a negative electrode pile, an electrolyzer stack, a road surface heat exchange system, and a photovoltaic wall; it also includes a heat exchange unit, an electrolyte delivery unit, a heat transfer medium delivery unit, a valve system, and an integrated control unit; wherein, the positive electrode pile and / or the negative electrode pile is a structural pile capable of accommodating positive / negative electrolyte inside; the photovoltaic wall is connected to the positive electrode pile and / or the negative electrode pile, one side of which is used for retaining soil, and at least one side is configured to capture solar energy and convert it into electric energy; the electrolyzer stack is respectively connected to the electric energy on the power supply side and the load on the user side, and is configured to cause the positive electrolyte and the negative electrolyte to react inside it, realizing the mutual conversion of chemical energy and electric energy, and achieving the purpose of charging and / or discharging; the electrolyte delivery unit is configured to respectively form a positive electrode pile - electrolyzer stack - positive electrode pile fluid path and a negative electrode pile - electrolyzer stack - negative electrode pile fluid path; the heat transfer medium delivery unit is configured to: - Connect one or more positive electrode piles and / or one or more negative electrode piles, and form a fluid path of positive electrode pile - valve system - heat exchange unit - valve system - positive electrode pile, and / or a fluid path of negative electrode pile - valve system - heat exchange unit - valve system - negative electrode pile; and - Connect the road surface heat exchange system to the heat exchange unit to form a fluid path of road surface heat exchange system - valve system - heat exchange unit - valve system - road surface heat exchange system; the integrated control unit is configured to control the charging and / or discharging of the electrolyzer stack, and control the heat in the positive electrode pile and / or the negative electrode pile to exchange heat with the heat in the road surface heat exchange system through the heat exchange unit.

2. The retaining system according to claim 1, characterized in that, the positive electrode pile or the negative electrode pile includes: a precast pipe pile, a bottom seal, and a top cover plate.

3. The retaining system according to claim 2, characterized in that, The inner wall of the precast pipe pile has corrosion resistance; the diameter d of the precast pipe pile tube has a value range of d tube ≥ 500 mm; and / or the bearing capacity τ of the precast pipe pile has a value range of τ≥800 tons.

4. The retaining system according to any one of claims 2 or 3, characterized in that, the precast pipe pile further includes: a grouting conduit embedded in the inner wall, a slurry outlet provided at the bottom, and a grouting port provided on the side wall; wherein, the slurry outlets and grouting ports between different pipe piles are connected by end joints.

5. The retaining system according to claim 1, characterized in that, the heat exchange unit includes a compressor, an evaporator, a condenser, an expansion valve, and a pipeline system.

6. The retaining system according to claim 1, characterized in that, the electrolyte delivery unit includes an electrolyte delivery pipeline and a first circulation pump; wherein, the electrolyte delivery pipeline passes through the positive electrode pile and / or the negative electrode pile and forms a circulation path with the electrolyzer stack; the first circulation pump makes the electrolyte circulate in the electrolyte delivery pipeline.

7. The retaining system according to claim 1, characterized in that, the heat transfer medium delivery unit includes a heat transfer medium delivery pipeline and a second circulation pump; wherein, the heat transfer medium delivery pipeline forms a circulation path with the heat exchange unit through the valve system; the second circulation pump makes the heat transfer medium circulate in the heat transfer medium delivery pipeline.

8. The retaining system according to claim 7, characterized in that, the main body of the heat transfer medium conveying pipeline is buried in one of the following positions: in the inner cavity of the positive pile and / or the negative pile, in the pipe wall of the pile body, or on the outer wall side of the pile body.

9. The retaining system according to claim 1, characterized in that, the road surface heat exchange system includes heat exchange pipes laid under the road surface, a heat conduction layer, a heat insulation layer, and a temperature-stress sensor; wherein, the heat conduction layer and the heat insulation layer are respectively in contact with the upper surface and the lower surface of the heat exchange pipes.

10. The retaining system according to claim 8, characterized in that, the heat conduction layer includes: a cementitious material containing calcium carbonate, or a solidified body formed by microbial-induced calcium carbonate precipitation.

11. The retaining system according to claim 1, characterized in that, the electrolyte conveying unit further includes a heat exchange device, and the heat exchange device is arranged on the electrolyte conveying pipeline for exchanging the heat in the stack with the heat on the user side through the heat exchange device.

12. The retaining system according to claim 1, characterized in that, the optoelectronic wall surface includes: a retaining wall body composed of a reinforced concrete wall surface main body, embedded optoelectronic elements, drainage holes, and drain pipes.

13. The retaining system according to claim 12, characterized in that, the embedded optoelectronic elements are fixed to the wall surface in one or more of the following ways: bolt fixation, hook or hanging fixation.

14. The retaining system according to any one of claim 12 or claim 13, characterized in that, the embedded optoelectronic elements are fixed to the optoelectronic wall surface through a movable support or frame, and the movable support or frame is configured to control its tilt angle through the integrated management and control unit.

15. A construction and installation method for a retaining system of integrated source-network-load-storage, characterized in that, comprises the following steps: (S1) Manufacturing precast pipe piles; (S2) Constructing the lower foundation structure, which includes: (S2-1) Drilling and pile sinking; (S2-2) Pile splicing; (S2-3) Repeating (S2-1) and (S2-2) until the pile length reaches the designed length or the pile tip effectively embeds into the designed formation; (S2-4) Scouring and bottom sealing; (S2-5) Repeating (S2-1) to (S2-4) until all pile foundation construction is completed; (S2-6) Sealing test and pile body inspection; (S2-7) Arranging heat transfer medium conveying pipelines inside the piles; (S2-8) Injecting electrolyte into the piles; (S2-9) Installing the top cover plate (110); (S3) Constructing the upper structure of the pile foundation, which includes: (S3-1) Constructing the main body of the optoelectronic wall surface; (S3-2) Constructing the drainage system; (S3-3) Installing the optoelectronic wall surface; (S4) Constructing the road surface heat exchange system; (S5) Installing the electrolyte conveying unit, the stack, and the inverter, and the inverter is used to connect the electrical energy of the stack with the external power supply side and the load on the user side; (S6) Connecting each device to the integrated management and control unit; (S7) Commissioning and operation.

16. The construction and installation method according to claim 15, characterized in that, The said (S5) further includes: connecting multiple positive electrode piles with an electrolyte delivery pipeline and accessing the positive electrode of the fuel cell stack through a first circulation pump; connecting multiple negative electrode piles with an electrolyte delivery pipeline and accessing the negative electrode of the fuel cell stack through a first circulation pump; connecting the fuel cell stack with an inverter; connecting the inverter with a power source and a load.

17. The construction and installation method according to claim 15, characterized in that the said (S1) further includes: while prefabricating 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.

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