CN220365042U - Overhead high-temperature molten salt storage tank foundation - Google Patents
Overhead high-temperature molten salt storage tank foundation Download PDFInfo
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- CN220365042U CN220365042U CN202321515419.1U CN202321515419U CN220365042U CN 220365042 U CN220365042 U CN 220365042U CN 202321515419 U CN202321515419 U CN 202321515419U CN 220365042 U CN220365042 U CN 220365042U
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- storage tank
- concrete
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- bottom plate
- molten salt
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- 150000003839 salts Chemical class 0.000 title claims abstract description 36
- 239000004567 concrete Substances 0.000 claims abstract description 89
- 239000002689 soil Substances 0.000 claims abstract description 27
- 238000004321 preservation Methods 0.000 claims abstract description 21
- 239000004576 sand Substances 0.000 claims abstract description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 25
- 239000010959 steel Substances 0.000 claims description 25
- 239000011150 reinforced concrete Substances 0.000 claims description 12
- 239000011449 brick Substances 0.000 claims description 5
- 238000005338 heat storage Methods 0.000 abstract description 2
- 239000002131 composite material Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 229910052918 calcium silicate Inorganic materials 0.000 description 2
- 239000000378 calcium silicate Substances 0.000 description 2
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000011494 foam glass Substances 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000005357 flat glass Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model belongs to the technical field of heat storage, and particularly relates to an overhead high-temperature molten salt storage tank foundation, which comprises a concrete bottom plate positioned above a soil layer, wherein an annular retaining wall is arranged above the concrete bottom plate, an insulating layer is arranged in the annular retaining wall, a foundation ring beam is arranged above the insulating layer, a storage tank body is arranged above the foundation ring beam, a sand layer is arranged between the storage tank body and the insulating layer, and a gravel layer is arranged below the sand layer; the lower part of the concrete bottom plate is provided with a supporting part, the upper end of the supporting part is fixedly connected with the concrete bottom plate, and the lower end of the supporting part is arranged in the soil layer. According to the utility model, the concrete bottom plate is arranged above the soil layer, and the soil layer and the concrete bottom plate are connected through the supporting component, so that the upper storage tank body is far away from the ground, the soil layer can be prevented from being influenced by high temperature, and meanwhile, the heat preservation layer is arranged in the annular retaining wall, so that the molten salt in the storage tank body can be preserved.
Description
Technical Field
The utility model belongs to the technical field of heat storage, and particularly relates to an overhead high-temperature molten salt storage tank foundation.
Background
In the field of solar power generation, radiant energy of solar energy is generally converted into heat energy of high-temperature molten salt through heating the molten salt for storage, power generation is performed by using the stored heat energy in a solar radiation-free period, the storage quantity of the molten salt and the use temperature of the molten salt have larger influence on the power generation efficiency of a power station, the scale of molten salt storage can generally reach ten thousand tons, the use temperature of the molten salt can reach hundreds of degrees, and the conditions require that a molten salt storage tank foundation has better heat preservation and bearing capacity.
In the prior art, the heat preservation or bearing capacity of the molten salt storage tank foundation basically meets the requirements, but the molten salt storage tank foundation in the prior art is of a buried type, and the buried type molten salt storage tank foundation has a disadvantage: when the buried molten salt storage tank foundation is in heat conduction, the heat of the molten salt storage tank is more or less transferred to foundation soil, under the high-temperature condition, the foundation soil is too high in temperature to cause evaporation of water in the foundation soil, and the foundation bearing capacity is reduced, so that the molten salt storage tank foundation is excessively and unevenly settled, the molten salt storage tank is inclined or unstable, and even the storage tank is broken, so that serious secondary disasters are caused.
Disclosure of Invention
The utility model aims to solve the technical problem of providing an overhead high-temperature molten salt storage tank foundation which not only can provide heat preservation and bearing capacity, but also can avoid the influence of high temperature on foundation soil.
The utility model solves the technical problems of the overhead high-temperature molten salt storage tank foundation, which adopts the technical scheme that the overhead high-temperature molten salt storage tank foundation comprises a concrete bottom plate positioned above a soil layer, wherein an annular retaining wall is arranged above the concrete bottom plate, an insulating layer is arranged in the annular retaining wall, a foundation ring beam is arranged above the insulating layer, a storage tank body is arranged above the foundation ring beam, a sand layer is arranged between the storage tank body and the insulating layer, and a gravel layer is arranged below the sand layer; the lower part of the concrete bottom plate is provided with a supporting part, the upper end of the supporting part is fixedly connected with the concrete bottom plate, and the lower end of the supporting part is arranged in the soil layer.
Further, the foundation ring beam is the concrete material, the top of foundation ring beam is provided with annular steel ring, the upper surface and the storage tank body butt of annular steel ring, lower surface and foundation ring beam butt.
Furthermore, refractory bricks are arranged between the heat preservation layer and the concrete bottom plate and between the heat preservation layer and the annular retaining wall.
Further, the support members are foundation piles, which are arranged along the circumferential direction of the concrete floor.
Further, the support component is a concrete retaining wall, and the concrete retaining wall comprises a plurality of concrete plates which are arranged at intervals and concrete arc plates positioned on two sides of the concrete plates.
Further, the support component is a concrete square column, and the concrete square column is arranged below the concrete bottom plate at intervals.
Further, a support frame is arranged at the bottom of the concrete bottom plate, and the support frame is fixedly connected with the support component.
Further, the bottom of the supporting part is provided with an underground reinforced concrete foundation.
Further, the heat preservation layer adopts ceramsite.
Further, the annular retaining wall is made of reinforced concrete or steel.
The beneficial effects of the utility model are as follows: through setting up concrete bottom plate in soil layer top to connect soil layer and concrete bottom plate through supporting part, make the storage tank body of top keep away from ground, can avoid the soil layer to receive high temperature influence, be provided with the heat preservation in annular barricade simultaneously, can keep warm this internal fused salt of storage tank.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic illustration of the support member of FIG. 1 attached to a concrete floor;
FIG. 3 is a schematic view of another embodiment of the present utility model;
FIG. 4 is a schematic view of the support member of FIG. 3 attached to a concrete floor;
FIG. 5 is a schematic view of a further embodiment of the present utility model;
FIG. 6 is a schematic view of the support member of FIG. 5 coupled to a support frame;
FIG. 7 is a schematic view of the annular retaining wall of FIG. 1 in the form of a steel plate;
FIG. 8 is a schematic view of the annular retaining wall of FIG. 3 in the form of a steel plate;
fig. 9 is a schematic view of the structure of the annular retaining wall of fig. 5 as a steel plate.
Reference numerals: 1-a concrete bottom plate; 2-soil layer; 201-an underground reinforced concrete foundation; 3-annular retaining wall; 4, an insulating layer; 5-a foundation ring beam; 501-sand layer; 502-a crushed stone layer; 6-a support member; 601-a support frame; 602-concrete slab; 603-a concrete arc plate; 7-a storage tank body; 8-an annular steel ring; 9-refractory brick.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
As shown in fig. 1, the overhead high-temperature molten salt storage tank foundation comprises a concrete bottom plate 1 positioned above a soil layer 2, wherein an annular retaining wall 3 is arranged above the concrete bottom plate 1, a heat preservation layer 4 is arranged in the annular retaining wall 3, a foundation ring beam 5 is arranged above the heat preservation layer 4, a storage tank body 7 is arranged above the foundation ring beam 5, a sand layer 501 is arranged between the storage tank body 7 and the heat preservation layer 4, and a gravel layer 502 is arranged below the sand layer 501; the lower part of the concrete bottom plate 1 is provided with a supporting part 6, the upper end of the supporting part 6 is fixedly connected with the concrete bottom plate 1, and the lower end of the supporting part 6 is arranged in the soil layer 2.
The concrete bottom plate 1 is circular or square in shape, the distance between the concrete bottom plate 1 and the soil layer 2 is calculated and determined according to weather conditions of the environment where the foundation is located, ventilation quantity between the concrete bottom plate 1 and the soil layer 2, temperature drop and other conditions between the concrete bottom plate 1 and the soil layer 2 and according to temperature calculation software. The cross section of the annular retaining wall 3 is circular or square, the outline size of the cross section of the annular retaining wall 3 is smaller than or equal to the outline size of the concrete bottom plate 1, and the cross section shapes of the annular retaining wall 3 and the concrete bottom plate 1 are consistent as much as possible; the heat preservation layer 4 can be made of high-strength calcium silicate board or foam glass, wherein the bottom of the heat preservation layer 4 is abutted with the upper surface of the concrete bottom plate 1; the foundation ring beam 5 can adopt steel, and the installation face of storage tank body 7 is regarded as to the upper surface of foundation ring beam 5, and foundation ring beam 5 places in the top of heat preservation 4, and heat preservation 4 can play a cushioning effect pressure-bearing, can keep warm the fused salt in the storage tank body 7 simultaneously. Because the fused salt is placed inside the storage tank body 7, this makes the middle part of the lower surface of storage tank body 7 can be protruding downwards, consequently is provided with sand layer 501 between storage tank body 7 and heat preservation 4, and the below of sand layer 501 is provided with rubble layer 502, the deformation of reply storage tank body 7 that can be better, and supporting part 6 can adopt steel construction post or reinforced concrete post, makes and produces the isolation space between concrete floor 1 and the soil layer 2, can reduce the heat of storage tank body 7 to soil layer 2 transmission.
If the foundation ring beam 5 is made of steel, the overall weight is large, the steel consumption is high, the cost is high, further, referring to fig. 1, 3, 5, 7, 8 and 9, the foundation ring beam 5 is made of concrete, an annular steel ring 8 is arranged above the foundation ring beam 5, the upper surface of the annular steel ring 8 is abutted against the storage tank body 7, and the lower surface of the annular steel ring 8 is abutted against the foundation ring beam 5. The foundation ring beam 5 is the concrete material, can reduce the cost, but because the storage tank body 7 is steel, the storage tank body 7 can cause wearing and tearing to the foundation ring beam 5, consequently is provided with annular steel ring 8 in the top of foundation ring beam 5, and annular steel ring 8 can protect foundation ring beam 5 not to be worn and torn to can be with the gravity average of storage tank body 7 to on the foundation ring beam 5, make foundation ring beam 5 atress more even.
Further, referring to fig. 1, 3, 5, 7, 8 and 9, refractory bricks 9 are disposed between the insulating layer 4 and the concrete floor 1 and between the insulating layer 4 and the annular retaining wall 3. The refractory brick 9 has the function of heat insulation, and can avoid damage such as cracking caused by contacting the foundation slab of the top section of the storage tank at high temperature.
In order to be able to improve the stability of the concrete floor 1, further, in embodiment 1 of the support member 6, see fig. 1 and 2, the support member 6 is a foundation pile, which is arranged along the circumference of the concrete floor 1. Wherein the supporting component 6 needs to be set according to the area of the concrete bottom plate 1, when the area of the concrete bottom plate 1 is large, the supporting component 6 can be set for a plurality of circles, and the pile foundation needs to be penetrated into the soil layer 2 when the bearing capacity of the soil layer 2 is poor in this embodiment. The spacing requirement and arrangement principle of pile foundations need to meet the technical specification JGJ94-2008 of building pile foundations and related specifications.
Embodiment 2 of the support member 6 further referring to fig. 3 and 4, the support member 6 is a concrete retaining wall comprising a plurality of concrete slabs spaced apart and concrete arcs 603 on both sides of the concrete slab 602. The projections of the plurality of concrete plates 602 on the horizontal plane are in a straight shape, and are arranged at equal intervals with the same thickness, so as to play a role in ventilation; the concrete arc plates 603 are arc-shaped, the circular outline size formed by the two concrete arc plates 603 is the same as the outline size of the concrete bottom plate 1, and therefore the rigidity of the supporting part 6 is higher, and the stability is better.
Embodiment 3 of the support member 6 referring to fig. 5 and 6, further, the support member 6 is a concrete square column which is arranged at intervals below the concrete floor 1. The concrete square columns are arranged in a plurality of rows and evenly distributed on the lower surface of the whole concrete bottom plate.
In order to improve the strength of the concrete floor 1, further, referring to fig. 6, a support frame 601 is provided at the bottom of the concrete floor 1, and the support frame 601 is fixedly connected with the support member 6. The support frame 601 is integrally cast with the concrete floor 1, so that the strength of the concrete floor 1 can be improved.
Further, referring to fig. 3, 5, 8 and 9, the bottom of the support member 6 is provided with an underground reinforced concrete foundation 201. The underground reinforced concrete foundation 201 is strip-shaped concrete or raft, so that the contact area between the supporting component 6 and the soil layer 2 can be increased, and the stability of the whole foundation can be improved.
Further, the heat-insulating layer 4 is made of ceramic grains.
The ceramsite is compacted ceramsite with good grading, can coordinate with the deformation of the steel plate of the annular wall at high temperature, and has a heat conductivity coefficient of about 0.15W/m.k. Under the conditions that heat preservation and stress meet engineering requirements, the ceramsite is used as a basic heat preservation layer, so that engineering cost can be effectively reduced. The temperature of the concrete layer is generally required to be not higher than 70 ℃ in engineering, and simulation tests prove that under the annual average temperature of engineering sites, the highest temperature of the concrete layer is about 60 ℃ when an original composite heat-insulating layer structure is adopted in normal operation, the highest temperature of the concrete layer is about 65 ℃ when ceramsite is adopted to replace the original composite heat-insulating layer, and the compressive strength of a foundation also meets the technical requirements when ceramsite is adopted to replace the original composite heat-insulating layer, so that the engineering construction cost can be greatly reduced on the premise of meeting the technical requirements when ceramsite is adopted to replace the original composite heat-insulating layer. The insulating layer 4 may be made of a material such as a high-strength calcium silicate plate or foam glass.
Further, referring to fig. 1, 3, 5, 7, 8 and 9, the annular retaining wall 3 is made of reinforced concrete or steel.
If the annular retaining wall 3 is a reinforced concrete structure, as shown in fig. 1, 3 and 5, the reinforced concrete and the annular retaining wall 3 are cast as a whole during casting. If the annular retaining wall 3 is a steel plate, as shown in fig. 7-9, the annular retaining wall 3 is embedded into the concrete bottom plate 1 to a certain depth, so that the annular retaining wall 3 is ensured to be rigidly connected with the concrete bottom plate 1.
It should be noted that, because the storage tank body is a high-heat object, the concrete used in the utility model is heat-resistant concrete, and the concrete is internally provided with steel bars to form a reinforced concrete structure.
The embodiments of the present utility model are all preferred embodiments of the present utility model, and are not intended to limit the scope of the present utility model in this way, therefore: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.
Claims (10)
1. An overhead high temperature fused salt storage tank basis, its characterized in that: the novel concrete storage tank comprises a concrete bottom plate (1) positioned above a soil layer (2), an annular retaining wall (3) is arranged above the concrete bottom plate (1), an insulating layer (4) is arranged in the annular retaining wall (3), a foundation ring beam (5) is arranged above the insulating layer (4), a storage tank body (7) is arranged above the foundation ring beam (5), a sand layer (501) is arranged between the storage tank body (7) and the insulating layer (4), and a gravel layer (502) is arranged below the sand layer (501); the lower part of the concrete bottom plate (1) is provided with a supporting part (6), the upper end of the supporting part (6) is fixedly connected with the concrete bottom plate (1), and the lower end of the supporting part (6) is arranged in the soil layer (2).
2. The overhead high temperature molten salt storage tank foundation of claim 1 wherein: the foundation ring beam (5) is made of concrete, an annular steel ring (8) is arranged above the foundation ring beam (5), the upper surface of the annular steel ring (8) is abutted to the storage tank body (7), and the lower surface of the annular steel ring is abutted to the foundation ring beam (5).
3. The overhead high temperature molten salt storage tank foundation of claim 1 wherein: refractory bricks (9) are arranged between the heat preservation layer (4) and the concrete bottom plate (1) and between the heat preservation layer (4) and the annular retaining wall (3).
4. The overhead high temperature molten salt storage tank foundation of claim 1 wherein: the support members (6) are foundation piles arranged along the circumferential direction of the concrete floor (1).
5. The overhead high temperature molten salt storage tank foundation of claim 1 wherein: the supporting component (6) is a concrete retaining wall, and the concrete retaining wall comprises a plurality of concrete plates (602) which are arranged at intervals and concrete arc plates (603) which are positioned on two sides of the concrete plates.
6. The overhead high temperature molten salt storage tank foundation of claim 1 wherein: the supporting component (6) is a concrete square column which is arranged below the concrete bottom plate (1) at intervals.
7. The overhead high temperature molten salt storage tank foundation of claim 6 wherein: the bottom of the concrete bottom plate (1) is provided with a supporting frame (601), and the supporting frame (601) is fixedly connected with a supporting part (6).
8. An overhead high temperature molten salt storage tank foundation as claimed in claim 5 or claim 6 wherein: the bottom of the supporting component (6) is provided with an underground reinforced concrete foundation (201).
9. The overhead high temperature molten salt storage tank foundation of claim 1 wherein: the heat preservation layer (4) adopts ceramsite.
10. An overhead high temperature molten salt storage tank foundation as claimed in any one of claims 4 to 6 wherein: the annular retaining wall (3) is made of reinforced concrete or steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321515419.1U CN220365042U (en) | 2023-06-14 | 2023-06-14 | Overhead high-temperature molten salt storage tank foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321515419.1U CN220365042U (en) | 2023-06-14 | 2023-06-14 | Overhead high-temperature molten salt storage tank foundation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220365042U true CN220365042U (en) | 2024-01-19 |
Family
ID=89520223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321515419.1U Active CN220365042U (en) | 2023-06-14 | 2023-06-14 | Overhead high-temperature molten salt storage tank foundation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220365042U (en) |
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2023
- 2023-06-14 CN CN202321515419.1U patent/CN220365042U/en active Active
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