Heat storage unit, method of manufacturing the same, and heat storage device

Abstract

The application discloses a heat storage unit and a manufacturing method and a heat storage device thereof. The manufacturing method comprises the following steps: assembling an outer frame mold, and inserting and locking a first sub-mold, a second sub-mold and a third sub-mold into the outer frame mold; pouring concrete into the outer frame mold; after a target curing time, sequentially extracting the first sub-mold, the second sub-mold and the third sub-mold, and then removing the outer frame mold to manufacture the heat storage unit; and curing the heat storage unit. The application provides the heat storage unit and the manufacturing method, improves the convenience of heat storage unit production and manufacturing, reduces the steel consumption in the installation process, improves the heat storage economic efficiency of the heat storage unit, and improves the positioning accuracy of the flow channel size.

Description

Technical Field

[0001] This invention relates to the field of thermal storage device technology, and in particular to a thermal storage unit and its manufacturing method, and a thermal storage device. Background Technology

[0002] According to different heat storage methods, thermal storage materials can be divided into sensible heat storage materials, thermochemical heat storage materials, and latent heat storage materials.

[0003] Currently, solid thermal storage materials mostly use refractory bricks and high-temperature concrete. Among them, the heat transfer medium used in high-temperature concrete is mostly clean fluids such as water, heat transfer oil and molten salt, and the structure of its thermal storage device is mostly buried tube bundle type. However, the heat transfer fluid used in refractory bricks is mostly air, and there are few reports on solid thermal storage devices that use dusty flue gas as the heat exchange fluid.

[0004] The conventional manufacturing method for existing concrete thermal storage devices is to cast a large number of small slabs, then stack them in a certain arrangement, leaving channels for the heat transfer medium between each slab. The heat transfer medium exchanges heat with the storage body through these channels, thus achieving the purpose of heat storage.

[0005] However, the manufacturing process involves a large number of individual panels, resulting in a massive amount of on-site installation work. Furthermore, maintaining the precision of the flow channels during the assembly of individual panels is difficult, and the connection process is complex. This is especially true when the flow channel dimensions are relatively small, leading to significant installation errors. Summary of the Invention

[0006] The main objective of this invention is to provide a method for manufacturing a thermal storage unit and a thermal storage device, which aims to improve the convenience of manufacturing thermal storage units and enhance the positioning accuracy of flow channel dimensions.

[0007] To achieve the above objectives, the present invention proposes a method for manufacturing a thermal storage unit, the method comprising the following steps:

[0008] Assemble the outer frame mold, and insert the first sub-mold, the second sub-mold, and the third sub-mold into the outer frame mold and lock them in place;

[0009] Pour concrete into the outer frame mold;

[0010] After the target curing time, the first sub-mold, the second sub-mold, and the third sub-mold are extracted in sequence, and then the outer frame mold is removed to produce the heat storage unit;

[0011] The thermal storage unit is then maintained.

[0012] Optionally, the step of maintaining the thermal storage unit specifically includes:

[0013] Depending on the current temperature and humidity of the concrete, the heat storage unit is subjected to water spraying or steam curing treatment.

[0014] To achieve the above objectives, the present invention also proposes a method for manufacturing a thermal storage unit, the method comprising the following steps:

[0015] The bottom slab, top slab, and several layers of slabs are poured separately; wherein the four corners of the layers of slabs are provided with concave edges;

[0016] The bottom plate, several layers, and the top plate are stacked sequentially, and four isolation plates are placed between the bottom plate and the layers, between two adjacent layers, and between the layers and the top plate to form multiple flow channels. The four isolation plates are respectively aligned with the four concave edges of the layers.

[0017] The steel bars of the bottom plate, several of the layer plates and the top plate are tied together to obtain the heat storage body;

[0018] The outer mold is fixed at the four corners of the heat storage body, and the outer mold and the concave edge of the layer plate of the heat storage body are respectively arranged to form a filling opening;

[0019] Pour concrete into the filling opening;

[0020] After the target curing time, the outer mold is removed to form the heat storage unit;

[0021] The thermal storage unit is then maintained.

[0022] Optionally, the step of binding the reinforcing bars of the bottom plate, the plurality of the layer plates, and the top plate to obtain the heat storage body specifically includes:

[0023] The steel bars that extend vertically from the bottom plate, the plurality of the layer plates and the top plate;

[0024] The steel bars are arranged horizontally and tied to the bottom plate, the several layers, and the top plate.

[0025] Optionally, the outer mold is four concave beam templates.

[0026] Optionally, the step of maintaining the thermal storage unit specifically includes:

[0027] Depending on the current temperature and humidity of the concrete, the heat storage unit is subjected to water spraying or steam curing treatment.

[0028] This invention proposes a thermal storage unit, which is manufactured using the thermal storage unit manufacturing method described above. The thermal storage unit includes a thermal storage body, which is made of concrete and has multiple flow channels.

[0029] Optionally, the heat storage body is arranged in a box shape.

[0030] Optionally, the plurality of flow channels are evenly spaced along the height direction of the thermal storage body.

[0031] The present invention also proposes a thermal storage device comprising a plurality of thermal storage units as described above.

[0032] In the technical solution of this invention, the manufacturing method of the thermal storage unit includes the following steps: assembling an outer frame mold, inserting a first sub-mold, a second sub-mold, and a third sub-mold into the outer frame mold and locking them in place; pouring concrete into the outer frame mold; after a target curing time, sequentially removing the first sub-mold, the second sub-mold, and the third sub-mold, and then dismantling the outer frame mold to form the thermal storage unit; and performing curing treatment on the thermal storage unit. This achieves one-time casting of the thermal storage unit, greatly improving the efficiency of thermal storage unit production. Furthermore, due to the one-time casting method, compared to the existing layering method, the thermal storage unit manufactured by this invention has higher accuracy in channel dimension positioning. In addition, using concrete as the thermal storage material effectively improves the economic efficiency of the thermal storage unit. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0034] Figure 1 This is a schematic flowchart of an embodiment of the manufacturing method of the thermal storage unit of the present invention;

[0035] Figure 2 This is a schematic flowchart illustrating another embodiment of the manufacturing method of the thermal storage unit of the present invention;

[0036] Figure 3 This is a schematic diagram of the structure of an embodiment of the thermal storage unit of the present invention;

[0037] Figure 4 This is a schematic diagram of the structure of an embodiment of the thermal storage device of the present invention;

[0038] Figure 5 This is a schematic diagram of the structure of the base plate in one embodiment of the manufacturing method of the thermal storage unit of the present invention;

[0039] Figure 6 This is a schematic diagram of the top plate structure in one embodiment of the manufacturing method of the thermal storage unit of the present invention;

[0040] Figure 7 This is a schematic diagram of the structure of the layer plate in one embodiment of the manufacturing method of the thermal storage unit of the present invention;

[0041] Figure 8 This is a side view of the heat storage body in one embodiment of the manufacturing method of the heat storage unit of the present invention;

[0042] Figure 9 This is a schematic diagram of the steel reinforcement binding of the heat storage body in one embodiment of the manufacturing method of the heat storage unit of the present invention;

[0043] Figure 10 This is a schematic diagram of the secondary casting of the heat storage body in one embodiment of the manufacturing method of the heat storage unit of the present invention;

[0044] Figure 11 This is a side view of an embodiment of the thermal storage unit of the present invention;

[0045] Figure 12 This is a front view of an embodiment of the thermal storage unit of the present invention;

[0046] Figure 13 This is a schematic diagram of the structure of an embodiment of the thermal storage device of the present invention.

[0047] Explanation of icon numbers:

[0048] 1. Thermal storage device; 100. Thermal storage unit; 110. Thermal storage body; 100a. Flow channel; 11. Outer frame mold; M1. First sub-mold; M2. Second sub-mold; M3. Third sub-mold; Q1. Bottom plate; Q2. Top plate; L1. Sheet plate; 111. Concave edge; L2. Isolation plate; 12. Outer mold; 100b. Filling port; 111. Reinforcing bar.

[0049] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0050] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0051] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0052] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, if the word "and / or" appears throughout the text, it means including three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0053] This invention proposes a method for manufacturing a thermal storage unit, applicable to the one-time casting manufacturing of thermal storage units, especially multi-channel box-type thermal storage units, but not limited to this.

[0054] Reference Figure 1 , Figure 3 and Figure 4 In one embodiment of the present invention, the method for manufacturing the thermal storage unit includes the following steps:

[0055] Step S11: Assemble the outer frame mold, and insert the first sub-mold, the second sub-mold, and the third sub-mold into the outer frame mold and lock them in place;

[0056] Step S12: Pour concrete into the outer frame mold;

[0057] Step S13: After the target curing time, the first sub-mold, the second sub-mold and the third sub-mold are extracted in sequence, and then the outer frame mold is removed to make the heat storage unit;

[0058] Step S14: Perform maintenance treatment on the heat storage unit.

[0059] Main Reference Figure 3 In this embodiment, the inner cavity of the outer frame mold 11 is designed to conform to the shape of the heat storage unit 100, and multiple insertion holes are provided for the insertion of the first sub-mold M1, the second sub-mold M2, and the third sub-mold M3. The first sub-mold M1, the second sub-mold M2, and the third sub-mold M3 correspond to the left side, the right side, and the front side of the heat storage unit 100, respectively, for extraction after concrete pouring to form the flow channel 100a. By setting the thickness of the first sub-mold M1, the second sub-mold M2, and the third sub-mold M3, the height of the flow channel 100a can be adjusted to meet the production needs of flow channels 100a of different sizes, while improving manufacturing accuracy.

[0060] It should be noted that when the volume of the thermal storage unit 100 is large and the spacing of the flow channels 100a is small, a horizontal pouring method can be adopted to place the thermal storage unit 100 horizontally.

[0061] In this embodiment, after the casting is completed and the casting strength of the heat storage unit 100 reaches the demolding standard, the first sub-mold M1, the second sub-mold M2 and the third sub-mold M3 are pulled out respectively. The first sub-mold M1 is pulled out to the left, the second sub-mold M2 is pulled out to the right, and the third sub-mold M3 is pulled out to the upper side.

[0062] In addition, after removing the three mold parts, pay attention to curing. Depending on the current temperature and humidity of the concrete, the heat storage unit 100 can be sprayed with water or steam-cured until the body of the heat storage unit 100 reaches the strengthening standard.

[0063] By employing the aforementioned manufacturing method, this invention achieves one-time casting of the thermal storage unit 100, significantly improving the production efficiency of the thermal storage unit 100. Furthermore, due to the one-time casting method, compared to the existing layering method, the thermal storage unit 100 manufactured by this invention has higher dimensional positioning accuracy of the flow channel 100a. In addition, using concrete as the thermal storage material effectively improves the economic efficiency of the thermal storage unit 100.

[0064] This invention proposes a method for manufacturing a thermal storage unit, applicable to the secondary casting manufacturing of thermal storage units, especially multi-channel box-type thermal storage units, but not limited to this.

[0065] Please refer to Figure 2 , Figure 3 , Figure 5 To the end Figure 12 In one embodiment of the present invention, the method for manufacturing the thermal storage unit includes the following steps:

[0066] Step S21: Cast the bottom plate, top plate and several layers of plates respectively; wherein the four corners of the layers of plates are provided with concave edges.

[0067] refer to Figure 5 and Figure 6 In this embodiment, the bottom slab Q1 and the top slab Q2 can be directly cast according to the required dimensions. (Reference) Figure 7 The remaining L1 layers can be cast using a special-shaped mold to create an irregular plate structure with recessed corners.

[0068] Step S22: Stack the bottom plate, several layers and the top plate in sequence, and place four isolation plates between the bottom plate and the layers, between two adjacent layers, and between the layers and the top plate to form multiple flow channels. The four isolation plates are respectively aligned with the four concave edges of the layers.

[0069] refer to Figure 8 In this embodiment, the bottom plate Q1 is placed at the bottom layer, and an isolation plate L2 with the same height as the required flow channel 100a is customized. The isolation plate L2 is placed on the concave edge 111 of the corresponding layer plate L1 of the bottom plate Q1, and then the layer plates L1 are stacked in sequence. An isolation plate L2 is placed between adjacent layer plates L1, and the isolation plate L2 is aligned with the concave edge 111 until the required height of the heat storage unit 100 is reached. Finally, the top plate Q2 is used to seal the top.

[0070] Step S23: Tie the reinforcing bars of the bottom plate, several of the layer plates and the top plate to obtain the heat storage body.

[0071] refer to Figure 9 Specifically, the process may include: binding the steel bars that extend vertically in the bottom plate, the several layers, and the top plate; and binding the steel bars that extend horizontally in the bottom plate, the several layers, and the top plate.

[0072] After the splicing is completed, the remaining four concave beams are reinforced with reinforcing bars. The reinforcing bar binding areas are the two ends of both sides of the heat storage body 110. The vertical reinforcing bars 111 and the horizontal reinforcing bars 111 are tied together with tie wire. Figure 9 As shown.

[0073] Step S24: Fix the outer mold at the four corners of the heat storage body, and the outer mold and the concave edge of the heat storage body's layer plate respectively form a filling opening.

[0074] Among them, the outer mold 12 can be four concave beam templates, such as Figure 10 As shown, after the reinforcement bars of the four concave beams are tied, the formwork is erected and the formwork of the concave beams is fixed and tightened.

[0075] Step S25: Pour concrete into the filling opening.

[0076] refer to Figure 10 and Figure 11 After fixing the concave beam formwork, concrete is poured through the filling port 100b.

[0077] Step S26: After the target curing time, remove the outer mold to form the heat storage unit.

[0078] After the pouring is completed and the pouring strength of the heat storage unit 100 reaches the demolding standard, the outer mold 12 is removed.

[0079] Step S27: Perform maintenance treatment on the heat storage unit.

[0080] After removing the outer mold 12, pay attention to the maintenance of the heat storage body until it reaches the strengthening standard.

[0081] In this embodiment, the heat storage unit 100 can be treated by water spraying or steam curing according to the current temperature and humidity of the concrete.

[0082] After it has fully solidified and formed, the heat storage unit 100 needs to be lifted and placed vertically.

[0083] The present invention also proposes a heat storage unit 100, which is manufactured using the above-described method for manufacturing heat storage unit 100.

[0084] refer to Figure 3 and Figure 12 In one embodiment of the present invention, the heat storage unit 100 includes a heat storage body 110, which is made of concrete and has multiple flow channels 100a.

[0085] In this embodiment, the heat storage body 110 may be box-shaped.

[0086] In this embodiment, multiple flow channels 100a are evenly arranged at intervals along the height direction of the thermal storage body 110.

[0087] It should be noted that compared with other heat storage materials, concrete has the advantage of high economic efficiency and good development prospects.

[0088] By employing the above-described manufacturing method to cast the heat storage body 110, the present invention makes the heat storage body 110 more integral, and the size of the flow channel 100a can be adjusted by the size of the template, thereby improving the positioning accuracy of the flow channel 100a.

[0089] The present invention also proposes a heat storage device 1, with reference to Figure 13 The heat storage device 1 includes a shell and a plurality of heat storage units 100 disposed inside the shell. The specific structure of the heat storage unit 100 is as described in the above embodiments. Since the heat storage device 1 proposed in this invention includes all the solutions of all the embodiments of the heat storage unit 100, it has at least the same technical effects as the heat storage unit 100, which will not be described in detail here.

[0090] The above description is merely an optional embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A method for manufacturing a thermal storage unit, characterized in that, The manufacturing method includes the following steps: The bottom slab, top slab, and several layers of slabs are poured separately; wherein the four corners of the layers of slabs are provided with concave edges; The bottom plate, several layers, and the top plate are stacked sequentially, and four isolation plates are placed between the bottom plate and the layers, between two adjacent layers, and between the layers and the top plate to form multiple flow channels. The four isolation plates are respectively aligned with the four concave edges of the layers. The steel bars of the bottom plate, several of the layer plates and the top plate are tied together to obtain the heat storage body; The outer mold is fixed at the four corners of the heat storage body, and the outer mold and the concave edge of the layer plate of the heat storage body are respectively arranged to form a filling opening; Pour concrete into the filling opening; After the target curing time, the outer mold is removed to form the heat storage unit; The thermal storage unit is then maintained.

2. The method for manufacturing the thermal storage unit as described in claim 1, characterized in that, The step of binding the reinforcing bars of the bottom plate, the plurality of the layer plates, and the top plate to obtain the heat storage body specifically includes: The steel bars that extend vertically from the bottom plate, the plurality of the layer plates and the top plate; The steel bars are tied to the bottom plate, the several layers, and the top plate, and are arranged in a horizontal direction.

3. The method for manufacturing the thermal storage unit as described in claim 1, characterized in that, The outer mold consists of four concave beam templates.

4. The method for manufacturing the thermal storage unit as described in claim 1, characterized in that, The steps for maintaining the thermal storage unit specifically include: Depending on the current temperature and humidity of the concrete, the heat storage unit is subjected to water spraying or steam curing treatment.

5. A thermal storage unit, manufactured using the method for manufacturing a thermal storage unit as described in any one of claims 1 to 4, characterized in that, The thermal storage unit includes a thermal storage body made of concrete, and the thermal storage body has multiple flow channels.

6. The thermal storage unit as described in claim 5, characterized in that, The thermal storage body is box-shaped.

7. The thermal storage unit as described in claim 5, characterized in that, The multiple flow channels are evenly spaced along the height direction of the thermal storage body.

8. A heat storage device, characterized in that, It includes multiple thermal storage units as described in any one of claims 5 to 7.

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