A heat-insulating shell for a molten salt tank

Abstract

The utility model relates to the technical field of industrial equipment heat preservation, disclose a kind of heat preservation shell for molten salt tank, including base, the bottom inner wall of base is fixedly connected with temperature controller, the inside of temperature controller is provided with heating water pipe, the top of base is fixedly connected with connecting shell one, the inside of connecting shell one is fixedly connected with heat storage mouth, the inside of connecting shell one is fixedly connected with heat releasing mouth, the top of connecting shell one is fixedly connected with fixed shell, the top of fixed shell is fixedly connected with connecting shell two, the top of connecting shell two is detachably connected with top shell, the top of top shell is fixedly connected with heat accumulator, the top of top shell is fixedly connected with heat releasing ware, in the utility model, it is kept constant to realize the temperature inside molten salt tank and effectively reduce the dissipation of heat, to reach the purpose of reducing energy waste due to temperature fluctuation and ensuring the temperature in molten salt tank is kept in the required range.

Description

Technical Field

[0001] This utility model relates to the field of industrial equipment insulation technology, and in particular to an insulation shell for molten salt tanks. Background Technology

[0002] An insulated shell for molten salt tanks is an insulation device specifically designed for high-temperature molten salt energy storage systems. Through multiple layers of insulation materials and structures, it effectively maintains the internal temperature of the molten salt tank and prevents heat loss. It is widely used in solar thermal power plants, industrial thermal energy storage, and clean energy supply stations.

[0003] The main function of an insulated shell for molten salt tanks is to maintain a stable internal temperature, prevent heat loss, and ensure the efficient operation of high-temperature molten salt energy storage systems. It effectively isolates the internal and external environmental temperature exchange and reduces heat loss by employing multi-layered insulation materials and structures. In existing technologies, some insulated shells suffer from uneven heat source distribution within the molten salt tank, leading to temperature imbalances, reduced system efficiency, and thermal stress on working components, resulting in material fatigue and shortened equipment lifespan. Therefore, an insulated shell for molten salt tanks is proposed to address these issues. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides an insulated shell for molten salt tanks, aiming to improve the problem of uneven internal temperature of molten salt tanks caused by uneven heat source distribution inside the molten salt tank in some existing insulated shells.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A heat-insulating shell for a molten salt tank includes a base, a temperature controller fixedly connected to the bottom inner wall of the base, a heating water pipe disposed inside the temperature controller, a connecting shell one fixedly connected to the top of the base, a heat storage port fixedly connected inside the connecting shell one, a heat release port fixedly connected inside the connecting shell one, a fixed shell fixedly connected to the top of the connecting shell one, a connecting shell two fixedly connected to the top of the fixed shell, a top shell detachably connected to the top of the connecting shell two, a heat accumulator fixedly connected to the top of the top shell, a heat releaser fixedly connected to the top of the top shell, an electric heating tube fixedly connected to the top of the connecting shell one, a conductive tube sleeved on the outside of the electric heating tube, and a heat-insulating component for storing heat inside the molten salt tank fixedly connected to the inner wall of the connecting shell one.

[0007] As a further description of the above technical solution:

[0008] The insulation component includes an inner box, a second insulation layer fixedly connected to the bottom of the inner box, a first insulation layer fixedly connected to the bottom of the inner box, and a heat insulation layer fixedly connected to the bottom of the inner box.

[0009] As a further description of the above technical solution:

[0010] The inner wall of the second connecting shell is provided with multiple inlet holes, the first connecting shell is made of porous ceramic material, and heat-conducting oil is introduced into the heating water pipe;

[0011] As a further description of the above technical solution:

[0012] The interior of the fixed shell is provided with a hollow groove, and the bottom of the electric heating tube is fixedly connected to the interior of the hollow groove;

[0013] As a further description of the above technical solution:

[0014] The second insulation layer is made of extruded polystyrene board, and the inner box is made of fiber-reinforced composite material;

[0015] As a further description of the above technical solution:

[0016] The insulation layer is made of aerogel insulation material, and the insulation layer one is made of polyurethane foam.

[0017] As a further description of the above technical solution:

[0018] The outer wall of the first insulation layer is fixedly connected to the inner wall of the heat insulation layer, the bottom outer wall of the inner box is fixedly connected to the inner wall of the first connecting shell, and the outer wall of the heating water pipe is in contact with the inner wall of the heat insulation layer.

[0019] As a further description of the above technical solution:

[0020] The outer wall of the heating water pipe is fixedly connected to the inside of the second insulation layer, and the outer wall of the heating water pipe is fixedly connected to the inside of the inner box.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, by turning on the temperature controller and the electric heating tube, the temperature controller detects the internal temperature of the molten salt tank. When the temperature drops, the heat transfer oil is heated, and the heat transfer oil expands into the heating water pipe. The electric heating tube heats the molten salt tank and transfers the heat through the heat transfer pipe to the inside of the molten salt tank, thereby controlling the internal temperature of the molten salt tank to remain constant. This achieves the goal of keeping the internal temperature of the molten salt tank constant, reducing energy waste caused by temperature fluctuations and thermal stress on the internal structure of the molten salt tank.

[0023] 2. In this utility model, the second insulation layer is made of extruded polystyrene board material, which has excellent heat insulation performance and good water resistance, and can effectively prevent heat loss through the second insulation layer. The first insulation layer is made of foamed polyurethane material with a closed-cell structure, which can effectively prevent heat loss through the bottom. The heat insulation layer ensures the stability of the internal temperature, thus realizing multi-layer heat insulation of the internal temperature of the molten salt tank, effectively reducing heat loss, ensuring that the temperature inside the molten salt tank is kept within the required range, and reducing the energy input required to maintain the internal temperature of the molten salt tank, thereby saving energy. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of an insulated shell for a molten salt tank proposed in this utility model;

[0025] Figure 2 This is a schematic diagram of the structure of a temperature controller for an insulated shell of a molten salt tank proposed in this utility model;

[0026] Figure 3 This is a schematic diagram of the connecting shell two of the heat-insulating shell for a molten salt tank proposed in this utility model;

[0027] Figure 4 This is a schematic diagram of the structure of the fixed shell two of the heat-insulating shell for a molten salt tank proposed in this utility model.

[0028] Legend:

[0029] 1. Base; 2. Temperature controller; 3. Heating water pipe; 4. Connecting shell one; 5. Heat storage port; 6. Heat release port; 7. Fixing shell; 8. Connecting shell two; 9. Inlet hole; 10. Top shell; 11. Heat storage unit; 12. Heat release unit; 13. Empty slot; 14. Insulation layer; 15. Insulation layer one; 16. Insulation layer two; 17. Inner box; 18. Electric heating element; 19. Conducting pipe. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Reference Figure 1 , Figure 3 , Figure 4This utility model provides an embodiment of an insulated shell for a molten salt tank, comprising a base 1. A temperature controller 2 is fixedly connected to the inner wall of the bottom of the base 1. The temperature controller 2, as the core component of the entire insulated shell, can monitor and adjust the temperature inside the molten salt tank in real time, ensuring that the molten salt operates within a suitable temperature range, thereby improving the working efficiency and safety of the molten salt tank. A heating water pipe 3 is installed inside the temperature controller 2. The heating water pipe 3 heats the molten salt tank through circulating hot water, keeping the molten salt in a liquid state, facilitating heat transfer and storage. A connecting shell 4 is fixedly connected to the top of the base 1. The connecting shell 4, as an important component of the insulated shell, plays a connecting and supporting role, ensuring the stability and sealing of the entire insulated shell. A heat storage port 5 is fixedly connected inside the connecting shell 4. The heat storage port 5 is used to receive excess heat inside the molten salt tank, store it, and release it when needed, realizing heat reuse and improving energy utilization.

[0032] A heat release port 6 is fixedly connected inside the connecting shell 4. The heat release port 6 is used to release the stored heat to meet the heat requirements of the molten salt tank under different working conditions and ensure the normal operation of the molten salt tank. A fixed shell 7 is fixedly connected to the top of the connecting shell 4. The fixed shell 7 plays a protective and fixing role to prevent damage to internal components. A connecting shell 8 is fixedly connected to the top of the fixed shell 7. The connecting shell 8 and the connecting shell 4 cooperate with each other to form the main structure of the insulation shell, ensuring the strength and rigidity of the entire insulation shell. A top shell 10 is detachably connected to the top of the connecting shell 8. The top shell 10 adopts a detachable design to facilitate the inspection and maintenance of the interior of the insulation shell and improve the ease of use of the equipment. A heat accumulator 11 is fixedly connected to the top of the top shell 10. The heat accumulator 11 is used to further store and regulate the heat inside the molten salt tank, so that the heat distribution is more uniform and the working efficiency of the molten salt tank is improved.

[0033] A heat exchanger 12 is fixedly connected to the top of the top shell 10. The heat exchanger 12 is used to release the stored heat as needed to meet the heat requirements of the molten salt tank under different working conditions and ensure the stable operation of the molten salt tank. An electric heating tube 18 is fixedly connected to the top of the connecting shell 4. The electric heating tube 18 is an auxiliary heating device that can provide additional heat when the internal temperature of the molten salt tank is insufficient, ensuring the normal operation of the molten salt tank. A conductive tube 19 is sleeved on the outside of the electric heating tube 18. An insulation component for storing the internal heat of the molten salt tank is fixedly connected to the inner wall of the connecting shell 4.

[0034] Reference Figures 2 to 4The insulation component includes an inner box 17, which serves as the core of the insulation component, providing protection and support, and ensuring the stability and sealing of the internal insulation material. A second insulation layer 16 is fixedly connected to the bottom of the inner box 17. This second insulation layer 16 is made of extruded polystyrene board, possessing excellent insulation performance and good water resistance, effectively preventing heat loss through the bottom and improving the overall insulation effect. A first insulation layer 15 is also fixedly connected to the bottom of the inner box 17. This first insulation layer 15 is made of foamed polyurethane, has a closed-cell structure, and effectively prevents heat loss through the bottom. Together with the second insulation layer 16, it forms a double insulation barrier. A heat insulation layer 14 is also fixedly connected to the bottom of the inner box 17. The second insulation layer 16 is made of extruded polystyrene board, the inner box 17 is made of fiber-reinforced composite material, the heat insulation layer 14 is made of aerogel insulation material, and the first insulation layer 15 is made of foamed polyurethane.

[0035] Reference Figure 1 , Figure 2 , Figure 4 The inner wall of the connecting shell 2 8 has multiple inlet holes 9, which are used for power cords and other control circuits to facilitate the connection of the heating element 18 and other electronic devices. The connecting shell 1 4 is made of porous ceramic material, which has good high temperature resistance and heat insulation properties, effectively reducing heat loss through the connecting shell 1 4 and improving the overall heat preservation effect. Heat transfer oil is introduced into the heating water pipe 3. As a heat transfer medium, the heat transfer oil can circulate in the heating water pipe 3 to transfer heat to the molten salt tank, thereby maintaining the temperature inside the molten salt tank. The temperature is stable. The interior of the fixed shell 7 has a slot 13 for accommodating electronic devices such as the heating element 18, which facilitates their installation and fixation. The bottom of the heating element 18 is fixedly connected to the interior of the slot 13. The outer wall of the insulation layer 15 is fixedly connected to the inner wall of the insulation layer 14. The bottom outer wall of the inner box 17 is fixedly connected to the inner wall of the connecting shell 4. The outer wall of the heating water pipe 3 is in contact with the inner wall of the insulation layer 14. The outer wall of the heating water pipe 3 is fixedly connected to the interior of the insulation layer 16. The outer wall of the heating water pipe 3 is fixedly connected to the interior of the inner box 17.

[0036] Working principle: When in use, by turning on the temperature controller 2 and the electric heating tube 18, the temperature controller 2 detects the internal temperature of the molten salt tank. When it detects a drop in temperature, it heats the heat transfer oil, which expands into the heating water pipe 3. Meanwhile, the electric heating tube 18 heats the oil and transfers the heat to the inside of the molten salt tank through the heat transfer pipe, thereby controlling the internal temperature of the molten salt tank to remain constant.

[0037] During heat dissipation, the heat first passes through insulation layer 2 16, which is made of extruded polystyrene board material. It has excellent thermal insulation performance and good water resistance, effectively preventing heat loss through insulation layer 2 16. Insulation layer 15 is made of foamed polyurethane material with a closed-cell structure, which can effectively prevent heat loss through the bottom. Then, the heat insulation layer 14 is passed through insulation layer 14, which is made of aerogel insulation material. It has extremely low thermal conductivity and good high temperature resistance, which can effectively prevent external heat from entering and ensure the stability of the internal temperature.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A heat-insulating shell for a molten salt vessel, comprising a base (1), characterized in that: A temperature controller (2) is fixedly connected to the bottom inner wall of the base (1). A heating water pipe (3) is installed inside the temperature controller (2). A connecting shell (4) is fixedly connected to the top of the base (1). A heat storage port (5) is fixedly connected inside the connecting shell (4). A heat release port (6) is fixedly connected inside the connecting shell (4). A fixed shell (7) is fixedly connected to the top of the connecting shell (4). A connecting shell (8) is fixedly connected to the top of the fixed shell (7). A top shell (10) is detachably connected to the top of the connecting shell (8). A heat accumulator (11) is fixedly connected to the top of the top shell (10). A heat releaser (12) is fixedly connected to the top of the top shell (10). An electric heating tube (18) is fixedly connected to the top of the connecting shell (4). A conductive tube (19) is sleeved on the outside of the electric heating tube (18). An insulation component for storing heat inside the molten salt tank is fixedly connected to the inner wall of the connecting shell (4).

2. The heat-insulating shell for a molten salt vessel according to claim 1, characterized in that: The insulation component includes an inner box (17), the bottom of which is fixedly connected to a second insulation layer (16), the bottom of which is fixedly connected to a first insulation layer (15), and the bottom of which is fixedly connected to a heat insulation layer (14).

3. The heat-insulating shell for a molten salt vessel according to claim 1, characterized in that: The inner wall of the second connecting shell (8) is provided with multiple inlet holes (9), the first connecting shell (4) is made of porous ceramic material, and heat transfer oil is introduced into the heating water pipe (3).

4. The heat-insulating shell for a molten salt vessel according to claim 1, characterized in that: The fixed shell (7) has a hollow groove (13) inside, and the bottom of the electric heating tube (18) is fixedly connected to the inside of the hollow groove (13).

5. The heat-insulating shell for a molten salt vessel according to claim 2, characterized in that: The insulation layer 2 (16) is made of extruded polystyrene board, and the inner box (17) is made of fiber reinforced composite material.

6. The heat-insulating shell for a molten salt vessel according to claim 2, characterized in that: The insulation layer (14) is made of aerogel insulation material, and the insulation layer (15) is made of polyurethane foam.

7. The heat-insulating shell for a molten salt vessel according to claim 2, characterized in that: The outer wall of the insulation layer (15) is fixedly connected to the inner wall of the insulation layer (14), the bottom outer wall of the inner box (17) is fixedly connected to the inner wall of the connecting shell (4), and the outer wall of the heating water pipe (3) is in contact with the inner wall of the insulation layer (14).

8. The heat-insulating shell for a molten salt vessel according to claim 2, characterized in that: The outer wall of the heating water pipe (3) is fixedly connected to the inside of the second insulation layer (16), and the outer wall of the heating water pipe (3) is fixedly connected to the inside of the inner box (17).

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