Solid heat accumulator capable of being transported by container and tower type installation method

Abstract

The invention discloses a solid heat accumulator capable of being transported by a container and a tower type installation method. The tower type installation method comprises the steps that solid heat accumulation units are built, detected and packaged in a factory workshop according to standard modules; the solid heat storage unit module adopts a standard container as a containing box body, the solid heat storage unit module is loaded into the container through hoisting equipment, and the solid heat storage unit module is transported to an equipment installation site through traffic transportation modes such as land transportation and sea transportation; the solid heat storage unit modules are transported to a container of an engineering site, the solid heat storage unit modules are integrally moved out of the container, and N sets of solid heat storage unit modules are placed on the first layer, N-1 sets of solid heat storage unit modules are placed on the second layer, and N-2 sets of solid heat storage unit modules are placed on the third layer in a tower type integral stacking mode in a hoisting mode and the like. And a solid heat storage unit module bolster is placed below each group of solid heat storage unit modules in advance for fixing, so that the solid heat storage bodies are kept stable in structure.

Description

Technical Field

[0001] The invention relates to the technical field of solid heat storage body structures, in particular to a solid heat storage body that can be transported by a container and a tower installation method. Background Art

[0002] At present, solid electric heat storage furnace equipment is generally divided into skid-mounted structure and field installation structure. Due to the limitations of space size and high-temperature dielectric properties of materials, the skid-mounted structure equipment is generally 10kV or less in working voltage, and the power of a single device is generally within 1000 kW. It has certain advantages for low heat demand and low power demand sites, but for high heat demand and equipment power of tens or even hundreds of megawatts, the application of skid-mounted solid electric heat storage furnaces will be limited, because under such conditions, electric heat storage furnaces often need to work at high voltage, i.e. 35kV or even 110kV, and the skid-mounted structure cannot meet its use requirements for space size and high-temperature dielectric properties of materials. At this time, the on-site installation structure is the best solution, but for overseas markets, it involves the overseas transportation of solid thermal storage bodies. Since the solid thermal storage bodies in the prior art are built on-site by solid thermal storage bricks weighing about 10 kg each, it requires complex material preparation and finding a team that can fully implement the construction process. It is time-consuming, labor-intensive, and costly, and the construction quality control is difficult. It is especially difficult to find a construction team composed of experienced or professional technical workers abroad, which brings many difficulties to the installation and delivery of solid electric thermal storage furnaces. At present, it is necessary to design a solid thermal storage body that can be produced in a factory workshop, suitable for loading and sending to users in standard containers, simplifying the on-site installation process of solid thermal storage bodies, reducing the installation and delivery costs of solid electric thermal storage furnaces, and helping to open up and expand overseas export markets. Summary of the invention

[0003] In view of the above technical requirements, the purpose of the present invention is to provide a solid thermal storage body that can be transported by container and a tower installation method, aiming to solve the problem that the structure of the existing conventional solid thermal storage body is not suitable for transportation by standard container and is not suitable for installation by hoisting.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions: In a first aspect, a solid heat storage body that can be transported by a container is provided. The solid heat storage body is composed of solid heat storage units. The solid heat storage units are divided into a first solid heat storage unit module, a second solid heat storage unit module and a third solid heat storage unit module. The first solid heat storage unit module, the second solid heat storage unit module and the third solid heat storage unit module are all built into multiple layers of heat storage bricks. Standard through holes are built between each layer of heat storage bricks. The first solid heat storage unit module has electric heating elements placed in all the through holes formed by its building. The second solid heat storage unit module has electric heating elements placed in the through holes formed by its building, wherein the through holes on the same side of the horizontal 1 / 2 are formed. The third solid heat storage unit module has no electric heating elements placed in the through holes formed by its building.

[0005] Furthermore, the first solid heat storage unit module, the second solid heat storage unit module and the third solid heat storage unit module are standard unit modules formed by combining A-type heat storage bricks, B-type heat storage bricks and C-type heat storage bricks through mortar to form multi-layer standard unit modules; wherein the A-type heat storage brick is provided with two sets of parallel grooves on the upper and lower surfaces in the vertical direction, the B-type heat storage brick is a vertical half-block structure of the A-type heat storage brick, and the upper and lower surfaces are provided with the same two sets of parallel grooves, and the C-type heat storage brick is a horizontal half-block structure of the A-type heat storage brick, and the upper and lower surfaces are provided with the same set of grooves. The solid heat storage unit module is formed by alternating two standard layers, wherein the first standard layer is composed of a combination of C-type heat storage bricks on both sides in the longitudinal direction and A-type heat storage bricks in the middle, and the second standard layer is composed of a combination of B-type heat storage bricks on both sides in the horizontal direction and A-type heat storage bricks in the middle, and finally, the two standard layers are alternately laid to form a solid heat storage unit module.

[0006] Furthermore, the thickness of the A-type heat storage brick, the B-type heat storage brick, and the C-type heat storage brick is the same as the cross-section of the reserved groove.

[0007] In a second aspect, a tower structure using a solid heat storage body that can be transported by a container is provided, wherein the tower structure is multi-layered and when the bottom layer is composed of N groups of solid heat storage units, the solid heat storage units on the top layer are all first solid heat storage unit modules, and the number of the solid heat storage units on the top layer is equal to N minus the value of the number of layers of the tower structure plus 1, thereby forming each lower layer solid heat storage unit that is fully covered by the orthographic projection of the first solid heat storage unit module on the top layer is a first solid heat storage unit module; each lower layer solid heat storage unit that is covered by 1 / 2 of the orthographic projection of the first solid heat storage unit module on the top layer is a second solid heat storage unit module; and each lower layer solid heat storage unit that is not covered by the orthographic projection of the first solid heat storage unit module on the top layer is a third solid heat storage unit module.

[0008] Furthermore, the tower structure is composed of 2 layers, 3 layers, 4 layers or 5 layers.

[0009] Furthermore, in the multi-layer tower structure thus formed, the number of electric heating elements in each layer of the solid thermal storage unit is the same, the electric heating elements in the vertical direction have a sequential correspondence, and the arrangement of the electric heating elements is a matrix structure. The electric heating element is a serpentine wire or a spiral wire made of an electric heating alloy, which can be connected to a triangle wiring structure or a star wiring structure to connect to the power grid.

[0010] In a third aspect, a tower installation method of a solid heat storage body that can be transported by a container comprises: Before transportation, the solid thermal storage units are respectively built into a first solid thermal storage unit module, a second solid thermal storage unit module and a third solid thermal storage unit module; the packaged solid thermal storage unit modules are placed as a whole on a transport cushion in a standard container and fixed, and then transported to the equipment installation site by land or sea transportation; After being transported to the equipment installation site, the solid thermal storage unit module is moved out of the standard container as a whole, so that the solid thermal storage unit module has the conditions for on-site overall lifting, and then the solid thermal storage unit module cushions are laid on the insulating foundation platform, and then the solid thermal storage unit is installed in a tower-shaped stacking to form a tower structure to complete the installation.

[0011] Furthermore, the overall tower-type stacking installation of the solid heat storage units is to first place a first layer of N groups of solid heat storage units on the insulating basic platform, then install a second layer of N-1 groups of solid heat storage units on the top of the first layer of N groups of solid heat storage units, and then place N-2 groups of solid heat storage units on the third layer on top of the second layer of solid heat storage units, and so on, and place N-(x-1) groups of solid heat storage units on the xth layer, forming a tower-type structure in sequence, and a hoisting gap is set between the solid heat storage units on each layer.

[0012] Furthermore, the detection is a compliance test for the overall bonding strength, material quality, geometric dimensions, etc. between the solid thermal storage unit modules.

[0013] Furthermore, the packaging is a shell structure for external packaging after dust-proof, waterproof, crack-proof and other treatments are performed on the solid thermal storage unit module.

[0014] Furthermore, the insulating foundation platform is arranged on the equipment foundation, with insulating pillars having the same working voltage level as the solid thermal storage unit module as the supporting structure, and a working platform built with magnesium oxide refractory bricks on the upper part.

[0015] Furthermore, the module cushion is a solid strip structure made of refractory material, which is arranged at the bottom of the solid thermal storage unit module and can be connected to the tops of two solid thermal storage unit modules in the lower adjacent layers.

[0016] The technical solution adopted by the present invention has the following advantages: The present invention forms the heat storage body into a module with a special structure, so that it can be suitable for transportation in standard containers. The solid heat storage body of the first solid heat storage unit module, the second solid heat storage unit module and the third solid heat storage unit module in the present invention can be transported using a standard container, and the structure can be kept stable in the standard container; and through the process of modular masonry of the solid heat storage unit in the factory, standard container transportation of the solid heat storage unit module, and modular tower installation of the solid heat storage unit on site, the production efficiency is improved, the production quality of the product is guaranteed, and the advantages of high-voltage and high-power solid electric heat storage equipment in expanding overseas markets are also improved.

[0017] Due to the first solid thermal storage unit module, the second solid thermal storage unit module and the third solid thermal storage unit module in the present invention, it is possible to install a tower structure on site. The tower installation structure has a stable structure and the electric heat path is reasonably designed, thereby improving the efficiency of thermal energy storage and release of the solid thermal storage body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] By reading the detailed description below with reference to the accompanying drawings, the above and other objects, features and advantages of the exemplary embodiments of the present invention will become readily understood. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein: Figure 1 It is a schematic diagram of the main process of the present invention; Figure 2 is a front view schematic diagram of a solid heat storage unit of the present invention; Figure 3 is a schematic side view of a solid heat storage unit of the present invention; Figure 4 is a schematic diagram of a first solid thermal storage unit module of the present invention; Figure 5 is a schematic diagram of a second solid thermal storage unit module of the present invention; Figure 6 is a schematic diagram of a third solid thermal storage unit module of the present invention; Figure 7 It is a schematic diagram of the three-layer combined structure of the on-site heat storage body of the present invention; Figure 8 It is a schematic diagram of a five-layer combined structure of an on-site heat storage body of the present invention; Description of Figure Numbers: 1. Type A heat storage brick, 2. Type B heat storage brick, 3. Type C heat storage brick, 4. Electric heating element, 5. Solid heat storage unit module cushion, 6. Insulating foundation platform, 7. Insulating pillar, 10. Solid heat storage unit, 10-1. First solid heat storage unit module, 10-2. Second solid heat storage unit module, 10-3. Third solid heat storage unit module. DETAILED DESCRIPTION

[0019] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. If not specifically stated, the technical means used in the embodiments are conventional means well known to those skilled in the art.

[0020] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in the present invention should be the common meanings understood by those skilled in the art to which the present invention belongs. In this article, 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. Terms such as "connection" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral body; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. The terms "include", "comprise" or any other variant 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 "include..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0021] This embodiment provides a solid heat storage body that can be transported by container and a tower installation method, such as Figure 1-Figure 8 shown.

[0022] A solid heat storage body that can be transported by a container comprises a solid heat storage unit 10, Figure 2 is a front view schematic diagram of a solid thermal storage unit 10, Figure 3 is a side view of a solid heat storage unit 10. The solid heat storage unit 10 weighs 10 tons to 25 tons, has a length of 3 meters to 6 meters, a width of 0.9 meters to 1.2 meters, and a height of 1.2 meters to 2.0 meters. The solid heat storage unit 10 is divided into Figure 4 The first solid thermal storage unit module 10-1 shown, Figure 5 The second solid thermal storage unit module 10-2 and Figure 6 The third solid heat storage unit module 10-3 shown, the first solid heat storage unit module 10-1, the second solid heat storage unit module 10-2 and the third solid heat storage unit module 10-3 are composed of type A heat storage bricks 1, type B heat storage bricks 2, and type C heat storage bricks 3, which are combined and laid according to design requirements, and 4 rows of through holes are formed between each layer of heat storage bricks; wherein the first solid heat storage unit module 10-1, in the four rows of holes formed by its laying, all discharge heating elements 4 are installed; the second solid heat storage unit module 10-2, in the four rows of holes formed by its laying, two rows of discharge heating elements 4 adjacent to each other on one side; the third solid heat storage unit module 10-3, in the four rows of holes formed by its laying, all have no electric heating elements 4.

[0023] The three modules made by the present invention are convenient to be loaded into a standard container, wherein the third solid heat storage unit module 10-3 does not have any electric heating element 4, and the 1 / 2 side of the second solid heat storage unit module 10-2 has an electric heating element 4, and the other 1 / 2 side does not have an electric heating element 4. The above two solid heat storage units 10 can play a supporting role in the tower-type construction at the bottom. If the first solid heat storage unit module 10-1 is used for tower construction, it will cause difficulties in the design of the electric heating path connection, or even be unnecessary.

[0024] Among them, the A-type heat storage brick 1 is provided with two sets of parallel grooves on the upper and lower surfaces in the vertical direction, the B-type heat storage brick 2 is a vertical half-block structure of the A-type heat storage brick, and is provided with two sets of parallel grooves on the upper and lower surfaces, and the C-type heat storage brick 3 is a horizontal half-block structure of the A-type heat storage brick 1, and is provided with the same set of grooves on the upper and lower surfaces. The solid heat storage unit module 10 is formed by alternating two standard layers, wherein the first standard layer is composed of C-type heat storage bricks 3 on both sides of the longitudinal direction and A-type heat storage bricks 1 in the middle, and the second standard layer is composed of B-type heat storage bricks 2 on both sides of the transverse direction and A-type heat storage bricks 1 in the middle. Finally, the two standard layers are alternately laid to form the solid heat storage unit module 10, and in the embodiment of the present invention, the thickness of the three types of heat storage bricks is the same as the cross-section of the reserved groove, and the length and width are different.

[0025] The existing solid heat storage furnace with an operating voltage of 35kV to 110kV generally has a power of 10MW to 100MW for each device, and the weight of the solid heat storage body is between 600 tons and 8000 tons. If the solid heat storage body is built on site, it is necessary to transport the A-type heat storage bricks 1, B-type heat storage bricks 2, and C-type heat storage bricks 3, each weighing 10kg to 20kg, to the installation site and manually build them on the insulating foundation platform 6. Compared with the solution of the on-site tower hoisting solid heat storage unit 10 of the present invention, it is time-consuming, labor-intensive, and cost-intensive, and the construction quality control is also difficult. In particular, it is difficult to find skilled installers at the installation site abroad to complete the delivery of the solid electric heat storage furnace. The present invention is used to manufacture the solid thermal storage unit 10 on a factory production line. The solid thermal storage unit 10, each weighing about 20 tons on average, is loaded into a container by a lifting device. A transport cushion and fixing measures are provided inside the container to ensure that the solid thermal storage unit 10 is convenient, safe and stable to operate during loading and unloading and transportation. The solid thermal storage unit 10 is transported to the equipment installation site by land transportation, sea transportation and other transportation methods, and the installation of the solid thermal storage unit 10 is completed by a lifting machine and a small number of lifting personnel.

[0026] A tower structure of a solid heat storage body that can be transported by a container, wherein the tower structure is stacked in multiple layers, and when the bottom layer is N groups (the value of N is generally in the range of 8 to 150) of solid heat storage units 10, the number of solid heat storage unit 10 groups in the highest layer is N minus the number of layers of the tower structure plus 1, thereby forming a solid heat storage unit 10 that is fully covered by the positive projection of the first solid heat storage unit module 10-1 in the highest layer is the first solid heat storage unit module 10-1; the solid heat storage unit 10 that is covered by 1 / 2 of the positive projection of the first solid heat storage unit module 10-1 in the highest layer is the second solid heat storage unit module 10-2; and the solid heat storage unit 10 that is not covered by the positive projection of the first solid heat storage unit module 10-1 in the highest layer is the third solid heat storage unit module 10-3.

[0027] In the embodiment of the present invention, the tower structure can also be two-layer, three-layer, four-layer or five-layer, wherein the five-layer structure is as follows: Figure 8 shown.

[0028] This tower-type structure can first maintain a stable structural state, so that the electric heating element 4 in the solid heat storage unit 10 has a reliable thermally stable heat storage body structure when it is connected to the working power supply; this tower-type structure, because the overall outer layer is made of the second solid heat storage unit module 10-2 and the third solid heat storage unit module 10-3, is equivalent to wrapping the first solid heat storage unit module 10-1 with the electric heating element 4 with an insulation layer, which slows down the loss of high-temperature heat energy stored in the first solid heat storage unit module 10-1 to the side, and can ensure the efficient output of heat in the holes of the solid heat storage unit 10. After the tower-type solid heat storage unit 10 is hoisted, the two ends of the hole without the electric heating element 4 are first sealed with high-temperature cement, and then an insulating and heat-insulating layer is set on the two sides and the top of the first solid heat storage unit module 10-1 on the highest layer, which can further improve the utilization rate of the electric heat conversion of the solid heat storage unit module 10.

[0029] A method for installing a solid heat storage body that can be transported in a container Figure 1 As shown, the solid thermal storage unit 10 is built, tested and packaged according to the standard modules in the factory workshop; the solid thermal storage unit module uses a standard container as a container body, and the solid thermal storage unit module is loaded into the container by a lifting device, and transported to the equipment installation site by land transportation, sea transportation and other transportation methods; the container transported to the project site is used to move the solid thermal storage unit 10 out of the container as a whole, and the solid thermal storage unit module cushion 5 is laid on the insulating foundation platform 6, and then the solid thermal storage unit 10 is hoisted onto the insulating foundation platform 6 for tower-type stacking installation to form a tower structure.

[0030] In an embodiment of the present invention, the overall tower-type stacking installation of the solid heat storage units 10 is to first place a first layer of N groups of solid heat storage units 10 on the insulating base platform 6, then install a second layer of N-1 groups of solid heat storage units 10 on the top of the first layer of solid heat storage units 10, and then place a third layer of N-2 groups of solid heat storage units 10 on the top of the second layer of solid heat storage units 10, forming a three-layer tower structure in sequence, and a hoisting gap is set between the solid heat storage units 10 of each layer.

[0031] In this embodiment, Figure 7It is a schematic diagram of the three-layer combined structure of the on-site heat storage body. The tower installation method of the present invention can build two, three, four or five layers in combination mode. The present invention adopts a multi-layer tower-type integral stacking method, that is, solid heat storage units 10 are placed on the platform composed of insulating pillars 7 and insulating foundation platforms 6 that have been built. According to the design, N groups of solid heat storage units 10 are placed on the first layer, N-1 groups of solid heat storage units 10 are placed on the second layer, and N-2 groups of solid heat storage units 10 are placed on the third layer. A lifting gap is set between the solid heat storage unit modules of each layer. At the same time, when placing, a solid heat storage unit module cushion 5 is pre-placed under each group of solid heat storage units 10.

[0032] In this embodiment, in the assembly of the solid heat storage unit module, the first standard layer is horizontally laid in the form of a combination of C-type heat storage bricks 3-A-type heat storage bricks 1-C-type heat storage bricks 3, and the second standard layer is vertically laid in the form of a combination of B-type heat storage bricks 2-A-type heat storage bricks 1-B-type heat storage bricks 2, and then the two standard layers are alternately laid to form the final rectangular solid heat storage unit module 10, and a hole running through the front and back is formed between the two standard layers, and each solid heat storage unit module 10 is formed by laying 12-20 standard layers by mortar; and in the embodiment of the present invention, a solid heat storage unit 10 with a 12-layer heat storage brick structure is preferred.

[0033] In the above installation steps, the inspection is to check whether the overall bonding strength, material quality and geometric dimensions between the solid thermal storage unit modules meet the standards; the packaging is to carry out dust-proof, waterproof and crack-proof treatment on the solid thermal storage unit modules, and to pack the outer shell structure on the outside.

[0034] The insulating foundation platform 6 is arranged on the equipment foundation, and is supported by insulating pillars 7 with the same working voltage level as the solid thermal storage unit module, and a working platform built with magnesium oxide refractory bricks on the upper part; the solid thermal storage unit module cushion 5 is a solid strip structure made of refractory material, which is arranged at the bottom of the solid thermal storage unit module and can be connected to the tops of two solid thermal storage unit modules in the lower adjacent layers.

[0035] The process of modular production of solid thermal storage units in the factory, standard container transportation of solid thermal storage unit modules, and modular combination of solid thermal storage units on site has not only improved production efficiency but also ensured product production quality. It also improves the advantages of high-voltage and high-power solid electric thermal storage equipment in expanding overseas markets.

[0036] Due to the first solid thermal storage unit module, the second solid thermal storage unit module and the third solid thermal storage unit module in the present invention, it is possible to install a tower structure on site. The tower installation structure has a stable structure and the electric heat path is reasonably designed, thereby improving the efficiency of thermal energy storage and release of the solid thermal storage body.

[0037] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A solid heat storage body that can be transported in a container, characterized in that: The solid heat storage body is composed of a solid heat storage unit (10). The solid heat storage unit (10) is divided into a first solid heat storage unit module (10-1), a second solid heat storage unit module (10-2) and a third solid heat storage unit module (10-3). The first solid heat storage unit module (10-1), the second solid heat storage unit module (10-2) and the third solid heat storage unit module (10-3) are all built up into multiple layers of heat storage bricks. Standard through holes are built between each layer of heat storage bricks. The first solid heat storage unit module (10-1) has all electric heating elements (4) placed in the through holes formed by its building. The second solid heat storage unit module (10-2) has electric heating elements (4) placed in the through holes on the same side of the horizontal 1 / 2 of the through holes formed by its building. The third solid heat storage unit module (10-3) has no electric heating elements (4) placed in the through holes formed by its building.

2. The solid heat storage body transportable by container according to claim 1, characterized in that: The first solid heat storage unit module (10-1), the second solid heat storage unit module (10-2) and the third solid heat storage unit module (10-3) are standard unit modules formed by combining A-type heat storage bricks (1), B-type heat storage bricks (2) and C-type heat storage bricks (3) by means of mortar, wherein the A-type heat storage brick (1) is provided with two sets of parallel grooves on the upper and lower surfaces in the vertical direction, and the B-type heat storage brick (2) is a vertical half-block structure of the A-type heat storage brick (1), and is provided with two sets of parallel grooves on the upper and lower surfaces. The C-type heat storage brick (3) is a transverse half-block structure of the A-type heat storage brick (1), and the upper and lower surfaces are provided with the same group of grooves; the solid heat storage unit module is formed by alternately laying two standard layers, wherein the first standard layer is composed of a combination of C-type heat storage bricks (3) on both sides in the longitudinal direction and A-type heat storage bricks (1) in the middle, and the second standard layer is composed of B-type heat storage bricks (2) on both sides in the transverse direction and A-type heat storage bricks (1) in the middle. Finally, the two standard layers are alternately laid to form the solid heat storage unit module.

3. A tower structure of a solid heat storage body transportable by a container according to claim 1, characterized in that: When the tower structure is multi-layered and the bottom layer has N groups of solid heat storage units (10), the number of groups of the first solid heat storage unit modules (10-1) in the top layer is equal to the value obtained by subtracting the number of layers of the tower structure from N and adding 1, thereby forming that each lower layer solid heat storage unit (10) fully covered by the orthographic projection of the first solid heat storage unit module (10-1) in the top layer is a first solid heat storage unit module (10-1); each lower layer solid heat storage unit (10) covered by 1 / 2 of the orthographic projection of the first solid heat storage unit module (10-1) in the top layer is a second solid heat storage unit module (10-2); and each lower layer solid heat storage unit (10) not covered by the orthographic projection of the first solid heat storage unit module (10-1) in the top layer is a third solid heat storage unit module (10-3).

4. The tower structure of the solid heat storage body transportable by container according to claim 3, characterized in that: The tower structure is composed of 2 layers, 3 layers, 4 layers or 5 layers.

5. The tower structure of solid heat storage body transportable by container according to claim 3, characterized in that: The number of electric heating elements (4) in each layer of the solid heat storage unit 10 is the same, the electric heating elements (4) in the vertical direction have a sequential correspondence, and the arrangement of the electric heating elements (4) is a matrix structure; the electric heating elements (4) can be connected to a power grid in a delta connection structure or a star connection structure.

6. A tower installation method using the solid heat storage body transportable by container according to claim 1, characterized in that: include: Before transportation, the solid heat storage unit (10) is respectively built into a first solid heat storage unit module (10-1), a second solid heat storage unit module (10-2) and a third solid heat storage unit module (10-3); the packaged solid heat storage unit modules are placed as a whole on a transport cushion in a standard container and fixed, and then transported to the equipment installation site by land or sea transportation; After being transported to the equipment installation site, the solid thermal storage unit module is moved out of the standard container as a whole, so that the solid thermal storage unit module has the conditions for on-site overall lifting, and then the solid thermal storage unit module cushion (5) is laid on the insulating foundation platform (6), and then the solid thermal storage unit (10) is stacked and installed in a tower shape to form a tower structure, thereby completing the installation.

7. The tower installation method of a solid heat storage body transportable by a container according to claim 6, characterized in that: The overall tower-type stacking installation of the solid heat storage units (10) is performed by first placing a first layer of N groups of solid heat storage units (10) on the insulating base platform (6), then installing a second layer of N-1 groups of solid heat storage units (10) on top of the first layer of N groups of solid heat storage units (10), and then placing a third layer of N-2 groups of solid heat storage units (10) on top of the second layer of N-1 groups of solid heat storage units (10), and so on, placing N-(x-1) groups of solid heat storage units (10) on the xth layer, and sequentially forming a multi-layer tower-type structure, and a hoisting gap is provided between the solid heat storage units (10) on each layer.

8. The tower installation method of a solid heat storage body transportable by a container according to claim 6, characterized in that: The overall tower-type stacking installation of the solid heat storage unit (10) can flexibly optimize the selection of the solid heat storage unit (10) to be installed in a two-layer, three-layer, four-layer or five-layer tower-type stacking structure according to the spatial height conditions of the installation site of the solid heat storage unit (10), the working voltage of the solid heat storage unit (10) and the electric power input by the electric heating element (4).

9. The tower installation method of a solid heat storage body transportable by a container according to claim 6, characterized in that: The insulating foundation platform (6) is arranged on the equipment foundation, and is supported by insulating pillars (7) having the same working voltage level as the solid thermal storage unit module, and is a working platform built on the upper part with magnesium oxide refractory bricks.

10. The tower installation method of a solid heat storage body transportable by a container according to claim 6, characterized in that: The solid heat storage unit module cushion (5) is a solid strip structure made of refractory material, arranged at the bottom of the solid heat storage unit module, and can be connected to the tops of two solid heat storage unit modules in the lower adjacent layer.

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