A thermal insulation structure for molten salt storage tanks

Abstract

This utility model discloses a thermal insulation structure for a molten salt storage tank, specifically relating to the field of molten salt storage tank technology. It includes: a tank body, with multiple thermal insulation plates arranged in a circular array on the outer side of the tank body; an arc-shaped groove is formed on the outer side of one end of each thermal insulation plate, and an arc-shaped retaining plate is formed on the outer side of the other end of each thermal insulation plate. The arc-shaped retaining plate can be inserted into the arc-shaped groove. Limiting protrusions are symmetrically arranged at both ends of the inner side of the arc-shaped retaining plate, and limiting grooves are symmetrically formed at both ends of the inner side of the arc-shaped groove, with the limiting protrusions insertable into the limiting grooves. This utility model, by arranging multiple sets of thermal insulation plates spliced ​​around the tank body, and in conjunction with the arc-shaped retaining plate, arc-shaped groove, limiting protrusions, and limiting grooves, achieves a tight connection between the ends of adjacent thermal insulation plates through the use of various mortise and tenon joints, greatly reducing connection gaps and significantly ensuring the overall tightness of the thermal insulation structure.

Description

Technical Field

[0001] This utility model relates to the field of molten salt storage tank technology, specifically to a molten salt storage tank insulation structure. Background Technology

[0002] Molten salt is a molten substance formed by melting salts. It is a melt composed of metal cations and non-metal anions, such as halides of alkali metals and alkaline earth metals, nitrates, and sulfates. Molten salt is solid at standard temperature and atmospheric pressure, but exists in a liquid phase when the temperature rises. Molten salt storage tanks are important large-scale high-temperature equipment in solar thermal power plants. In the field of solar power generation, solar radiation energy is usually converted into high-temperature thermal energy of molten salt for easy storage. The safety and economy of molten salt storage tanks play a crucial role in the operation of the power plant.

[0003] Currently, due to the high operating temperature of molten salt storage tanks, thermal insulation measures are often required to minimize heat loss. Existing insulation methods mostly involve laying insulation boards on the outer wall of the tank. However, due to the cylindrical structure of the tank, the insulation structure is usually composed of multiple insulation boards spliced ​​together. After splicing, large gaps are easily generated at the joints, resulting in poor tightness and difficulty in ensuring the overall stability of the structure, which greatly affects the safety and stability in the later stages. Utility Model Content

[0004] The purpose of this utility model is to provide a thermal insulation structure for molten salt storage tanks. By setting up multiple sets of insulation boards spliced ​​together around the tank body, and cooperating with arc-shaped clamping plates, arc-shaped clamping grooves, limiting protrusions and limiting grooves, the ends of two adjacent insulation boards can be tightly connected together through the mortise and tenon joints of various concave and convex structures. This greatly reduces the connection gaps and ensures the overall tightness of the thermal insulation structure, thereby solving the above-mentioned shortcomings in the technology.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a molten salt storage tank insulation structure, comprising:

[0006] The storage tank body has multiple insulation plates arranged in a circular array on its outer side;

[0007] An arc-shaped slot is provided on the outer side of one end of the insulation board, and an arc-shaped plate is provided on the outer side of the other end of the insulation board. The arc-shaped plate can be inserted into the arc-shaped slot. Limiting protrusions are symmetrically provided at both ends of the inner side of the arc-shaped plate. Limiting grooves are symmetrically provided at both ends of the inner side of the arc-shaped slot, and the limiting protrusions can be inserted into the limiting grooves.

[0008] A fixing component is provided between two adjacent insulation boards.

[0009] Preferably, the fixing component includes first threaded holes symmetrically opened at both ends of the side wall of the arc-shaped card plate, and fastening bolts are connected through the first threaded holes. The inner ends of the arc-shaped card groove are symmetrically opened with second threaded holes facing the fastening bolts between the two limiting grooves.

[0010] Preferably, the insulation board is provided with supporting crossbeams at both the upper and lower ends of its outer side, and supporting longitudinal beams are symmetrically fixed between the ends of the two supporting crossbeams.

[0011] Preferably, a fixing frame is fixed between the outer sides of the two supporting crossbeams, and a fixing hole is provided at the bottom end of the fixing frame, through which a fixing nail passes.

[0012] Preferably, a plurality of cavities are provided between the inner and outer sides of the insulation board, and a plurality of telescopic cylinders are fixed inside the cavities, with springs sleeved on the outer walls of the telescopic cylinders.

[0013] Preferably, a flame-retardant layer is provided between the outer wall of the storage tank body and the insulation board.

[0014] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0015] By setting up multiple sets of insulation boards spliced ​​together around the tank body, and with the help of arc-shaped clamping plates, arc-shaped clamping grooves, limiting protrusions and limiting grooves, the ends of two adjacent insulation boards can be tightly connected together through the mortise and tenon joints of various concave and convex structures, greatly reducing the connection gaps and ensuring the overall tightness of the insulation structure.

[0016] By setting a first threaded hole, a fastening bolt, and a second threaded hole between the arc-shaped card plate and the arc-shaped card slot, a stable connection between two adjacent insulation boards can be achieved. Furthermore, by setting a support beam and a support longitudinal beam to form a support frame on the outside of the insulation board, and cooperating with the fixing frame and fixing nails to support and fasten it to the ground, the overall strength of the insulation structure can be greatly enhanced, resulting in strong stability and good performance.

[0017] By incorporating multiple cavities, telescopic cylinders, and springs within the insulation board, its structural support and elasticity enable it to possess a certain compressive strength. This effectively prevents the insulation board from cracking and being damaged due to insufficient compressive strength, significantly improving the safety of the insulation structure. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is one of the structural schematic diagrams of the insulation board of this utility model;

[0021] Figure 3 This is the second structural schematic diagram of the insulation board of this utility model;

[0022] Figure 4 This is a longitudinal sectional view of the insulation board of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Tank body; 2. Insulation board; 3. Flame retardant layer; 4. Arc-shaped retaining plate; 5. Arc-shaped retaining groove; 6. Limiting protrusion; 7. Limiting groove; 8. Fastening bolt; 9. First threaded hole; 10. Second threaded hole; 11. Support beam; 12. Support longitudinal beam; 13. Fixing frame; 14. Fixing hole; 15. Fixing nail; 16. Cavity; 17. Telescopic cylinder; 18. Spring. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0026] This utility model provides, for example Figures 1-4 The molten salt storage tank insulation structure shown includes:

[0027] The storage tank body 1 has multiple insulation plates 2 arranged in a ring array on its outer side;

[0028] An arc-shaped groove 5 is provided on the outer side of one end of the insulation board 2, and an arc-shaped plate 4 is provided on the outer side of the other end of the insulation board 2. The arc-shaped plate 4 can be inserted into the arc-shaped groove 5. Limiting protrusions 6 are symmetrically provided on both ends of the inner side of the arc-shaped plate 4. Limiting grooves 7 are symmetrically provided on both ends of the inner side of the arc-shaped groove 5, and the limiting protrusions 6 can be inserted into the limiting grooves 7.

[0029] A fixing component is installed between two adjacent insulation boards 2.

[0030] The fixing component includes first threaded holes 9 symmetrically opened at both ends of the side wall of the arc-shaped card plate 4, and fastening bolts 8 passing through the first threaded holes 9. The inner ends of the arc-shaped card groove 5 are located between two limiting grooves 7 and have second threaded holes 10 symmetrically opened facing the fastening bolts 8.

[0031] In use, multiple insulation boards 2 can be spliced ​​together and surrounded around the tank body 1. The arc-shaped clamping plates 4 and arc-shaped clamping grooves 5 at the ends of two adjacent insulation boards 2 can be interlocked and fitted together. At the same time, the limiting protrusions 6 on the inner side of the arc-shaped clamping plates 4 can be fitted into the limiting grooves 7 in the arc-shaped clamping grooves 5. With the mortise and tenon joints of various concave and convex structures, the ends of two adjacent insulation boards 2 can be tightly connected together, greatly reducing the connection gaps and ensuring the overall tightness of the insulation structure.

[0032] Support beams 11 are provided at both the upper and lower ends of the outer side of the insulation board 2, and support longitudinal beams 12 are symmetrically fixed between the ends of the two support beams 11.

[0033] A fixing frame 13 is fixed between the outer sides of the two supporting crossbeams 11. The bottom end of the fixing frame 13 is provided with a fixing hole 14, and a fixing nail 15 passes through the fixing hole 14.

[0034] The fastening bolt 8 can be screwed into the first threaded hole 9 on the outside of the arc-shaped card plate 4, and the fastening bolt 8 is inserted into the second threaded hole 10 on the inside of the arc-shaped card groove 5, thereby achieving a stable connection between two adjacent insulation boards 2. The support beam 11 and the support longitudinal beam 12 can form a support frame on the outside of the insulation board 2, which is supported on the ground with the fixing frame 13. The fixing frame 13 can be further nailed to the ground with the fixing nail 15, thereby greatly enhancing the overall strength of the insulation structure, making it highly stable and effective.

[0035] Multiple cavities 16 are provided between the inner and outer sides of the insulation board 2. Multiple telescopic cylinders 17 are fixed inside the cavity 16, and springs 18 are sleeved on the outer wall of the telescopic cylinder 17.

[0036] By setting up a cavity 16, and having multiple sets of telescopic cylinders 17 and springs 18 inside the cavity 16, the insulation board 2 can have a certain compressive strength under the support and elasticity of its structure, thereby effectively preventing the insulation board 2 from cracking and being damaged due to insufficient compressive strength, and greatly improving the safety of the insulation structure.

[0037] A flame-retardant layer 3 is provided between the outer wall of the storage tank body 1 and the insulation board 2. Based on this, the flame-retardant layer 3 can prevent the insulation board 2 from being ignited by excessively high temperature.

[0038] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A thermal insulation structure for a molten salt storage tank, characterized in that, include: The storage tank body (1) has multiple insulation plates (2) arranged in a ring array on the outside of the storage tank body (1). An arc-shaped slot (5) is provided on the outer side of one end of the insulation board (2), and an arc-shaped plate (4) is provided on the outer side of the other end of the insulation board (2). The arc-shaped plate (4) can be inserted into the arc-shaped slot (5). The inner two ends of the arc-shaped plate (4) are symmetrically provided with limiting protrusions (6). The inner two ends of the arc-shaped slot (5) are symmetrically provided with limiting grooves (7), and the limiting protrusions (6) can be inserted into the limiting grooves (7). A fixing component is provided between two adjacent insulation boards (2).

2. The molten salt storage tank insulation structure according to claim 1, characterized in that: The fixing component includes first threaded holes (9) symmetrically opened at both ends of the side wall of the arc-shaped card plate (4), and fastening bolts (8) are connected through the first threaded holes (9). The inner ends of the arc-shaped card groove (5) are symmetrically opened with second threaded holes (10) facing the fastening bolts (8) between the two limiting grooves (7).

3. The molten salt storage tank insulation structure according to claim 1, characterized in that: The insulation board (2) has support beams (11) at both the upper and lower ends on the outer side, and support longitudinal beams (12) are symmetrically fixed between the ends of the two support beams (11).

4. The molten salt storage tank insulation structure according to claim 3, characterized in that: A fixing frame (13) is fixed between the outer sides of the two supporting beams (11), and a fixing hole (14) is provided at the bottom end of the fixing frame (13), and a fixing nail (15) passes through the fixing hole (14).

5. The molten salt storage tank insulation structure according to claim 1, characterized in that: Multiple cavities (16) are provided between the inner and outer sides of the insulation board (2). Multiple telescopic cylinders (17) are fixed inside the cavity (16), and springs (18) are sleeved on the outer wall of the telescopic cylinder (17).

6. The molten salt storage tank insulation structure according to claim 1, characterized in that: A flame-retardant layer (3) is provided between the outer wall of the storage tank body (1) and the insulation board (2).

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