A detachable concrete hanging pot heat preservation device based on phase change material

Abstract

The utility model discloses a detachable concrete hanging pot heat preservation device based on phase change material, building material and construction equipment technical field, including the concrete hanging pot for bearing concrete, still include: phase change temperature adjusting layer, the phase change temperature adjusting layer is wrapped on the outer wall of concrete hanging pot, the phase change temperature adjusting layer includes rubber layer, and a plurality of equidistance distribution's expanded graphite partition is provided on the inner wall of rubber layer, and the cavity between rubber layer and concrete hanging pot is divided into a plurality of independent layers by expanded graphite partition. The utility model can improve the heat preservation performance of concrete hanging pot significantly, prevent the frost heaving problem of concrete in the process of transporting in the high and cold area effectively and the compact structure of the device, and the device is convenient to install and detach, does not increase the weight of hanging pot significantly, simultaneously, utilizes the energy storage characteristic of phase change material, and the energy consumption is reduced greatly, and the multiple transportation demand can be satisfied in single charging, and the device has remarkable economy and environmental protection benefit.

Description

Technical Field

[0001] This utility model relates to the field of building materials and construction equipment technology, and in particular to a detachable concrete tank insulation device based on phase change materials. Background Technology

[0002] In the construction industry, the transportation and insulation of concrete are crucial for ensuring construction quality, especially in cold regions where low temperatures have a significant impact on concrete performance. Traditional concrete hoppers lack effective insulation measures during transportation, leading to a rapid drop in temperature within the hopper—for example, a decrease of more than 15°C within 20 minutes. This rapid cooling can easily cause frost heave in the concrete, severely affecting its performance and usability.

[0003] To address this issue, various insulation methods have been employed in existing technologies, but all have varying degrees of shortcomings. For example, while electric heat tracing can provide some heat, its energy consumption is high; steam heating systems have complex piping, resulting in high installation and maintenance costs; rock wool wrapping is prone to insulation layer collapse during transport, affecting its insulation effect; and diesel heating systems are limited in their applicability due to difficulties in starting at high altitudes. Therefore, there is an urgent need for an energy-saving, low-cost, and easy-to-install and maintain concrete tank insulation device to meet the needs of construction in high-altitude and cold regions. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a detachable concrete tank insulation device based on phase change materials. This device utilizes the heat storage and release properties of phase change materials to absorb heat during the preheating stage and continuously release heat during transportation, effectively maintaining the temperature stability of the concrete. Simultaneously, the device employs a combination of a partition layer design and an external insulation layer, which not only improves heat exchange efficiency but also significantly reduces energy consumption and environmental pollution. Furthermore, the device is detachable and lightweight, facilitating transportation, installation, and reuse, making it particularly suitable for the complex construction environments of high-altitude and cold regions. This innovative design aims to solve the problems of poor insulation, high energy consumption, and inconvenient installation and maintenance in existing technologies, providing an efficient, economical, and environmentally friendly solution for concrete transportation in high-altitude and cold regions.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A detachable concrete tank insulation device based on phase change material includes a concrete tank for supporting concrete, and further includes: A phase change temperature regulating layer is wrapped around the outer wall of a concrete tank. The phase change temperature regulating layer includes a rubber layer, and several equidistantly distributed expanded graphite partitions are provided on the inner wall of the rubber layer. The expanded graphite partitions divide the cavity between the rubber layer and the concrete tank into multiple independent partitions, and each independent partition is filled with a phase change material. A heating element is installed inside the rubber layer, while a quick-release lithium battery pack that powers the heating element is installed outside the concrete tank.

[0006] Preferably, the heating assembly includes several resistance wires, which are arranged along the longitudinal direction of the rubber layer and embedded in several expanded graphite partitions and phase change materials. Each rubber layer has terminals welded to both ends, and adjacent terminals are connected to each other by parallel wires.

[0007] Preferably, the phase change material is made of paraffin wax with a phase change temperature of -5°C.

[0008] Preferably, the resistance wire has a power of 200-300W, and the quick-release lithium battery pack is detachably connected to the heating component via wires, with a capacity of 20-30Ah.

[0009] Preferably, the phase change temperature regulating layer is wrapped with an external insulation layer, and both the external insulation layer and the rubber layer are made of flexible rubber material.

[0010] Preferably, small holes are provided on the surface of the external insulation layer that contacts the concrete tank, and binding steel wires are inserted into adjacent holes, while a strap is provided at one end of the external insulation layer.

[0011] This utility model has the following beneficial effects: This invention significantly improves the thermal insulation performance of concrete tanks, effectively preventing freezing and swelling of concrete during transportation in cold regions. The device has a compact structure, is easy to install and disassemble, and does not significantly increase the weight of the tank. At the same time, by utilizing the energy storage characteristics of phase change materials, energy consumption is greatly reduced, and a single charge can meet the needs of multiple transportations, resulting in significant economic and environmental benefits. Attached Figure Description

[0012] Figure 1 This is an overall diagram of a detachable concrete tank insulation device based on phase change material proposed in this utility model. Figure 2 This is a partial schematic diagram showing the concrete tank and the external insulation layer being fixed by binding steel wires in a detachable concrete tank insulation device based on phase change material proposed in this utility model. Figure 3This is a schematic diagram of the structure of a detachable concrete tank insulation device based on phase change material proposed in this utility model, showing the concrete tank being hidden. Figure 4 This is a schematic diagram of the phase change temperature regulating layer and its internal structure in a detachable concrete tank insulation device based on phase change material proposed in this utility model.

[0013] Legend: 1. Concrete tank; 2. External insulation layer; 3. Straps; 4. Quick-release lithium battery pack; 5. Binding wire; 6. Phase change temperature regulating layer; 7. Heating components; 61. Rubber layer; 62. Expanded graphite separator; 63. Phase change material; 71. Resistance wire; 72. Terminal block; 73. Parallel wire. Detailed Implementation

[0014] 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.

[0015] Example: Refer to Figures 1-4 This utility model provides an embodiment of a detachable concrete tank insulation device based on phase change materials. It includes a concrete tank 1 for supporting concrete, typically made of metal, possessing high strength and durability. It also includes a phase change temperature regulating layer 6, which wraps around the outer wall of the concrete tank 1. The phase change temperature regulating layer 6 includes a rubber layer 61, and several equidistantly distributed expanded graphite partitions 62 are arranged on the inner wall of the rubber layer 61, dividing the cavity between the rubber layer 61 and the concrete tank 1. Multiple independent partitions are provided, and each independent partition is filled with phase change material 63. This material has excellent heat storage and heat release performance. The expanded graphite partition 62 not only serves as a separator, but also effectively prevents leakage when the phase change material 63 liquefies due to its high thermal conductivity and adsorption function, while improving heat exchange efficiency. A heating component 7 is provided inside the rubber layer 61, and a quick-release lithium battery pack 4 is provided on the outside of the concrete tank 1 to power the heating component 7. The heating component 7 achieves rapid preheating of the phase change material 63 by being powered by the quick-release lithium battery pack 4.

[0016] Reference Figure 4The heating component 7 includes several resistance wires 71, which are arranged along the longitudinal direction of the rubber layer 61 and embedded in several expanded graphite partitions 62 and phase change material 63. Each rubber layer 61 has terminals 72 welded to both ends, and adjacent terminals 72 are connected to each other by parallel wires 73. The quick-release lithium battery pack 4 supplies power to several resistance wires 71 at the same time, so that several resistance wires 71 generate heat at the same time, thereby rapidly preheating the phase change material 63 and liquefying the phase change material 63.

[0017] Reference Figure 4 The phase change material 63 is made of paraffin with a phase change temperature of -5°C, which can maintain the appropriate temperature of concrete in low-temperature environments and prevent concrete from freezing and swelling due to excessively low ambient temperatures.

[0018] Reference Figure 4 The resistance wire 71 has a power of 200-300W, and the quick-release lithium battery pack 4 is detachably connected to the heating component 7 through wires. The capacity of the quick-release lithium battery pack 4 is 20-30Ah, meaning that a single full charge of the quick-release lithium battery pack 4 can meet the preheating requirements of at least 5 transportation tasks.

[0019] Reference Figures 1-3 The phase change temperature regulating layer 6 is wrapped with an external insulation layer 2. Both the external insulation layer 2 and the rubber layer 61 are made of flexible rubber material with a thermal conductivity ≤0.05W / (m·K) and a flexible tensile strength ≥8MPa. They can adapt to the shape of the tank, reducing external cold conduction. The thickness of the external insulation layer 2 and the rubber layer 61 can be adaptively adjusted according to the size of the concrete tank 1. The flexible material of the external insulation layer 2 and the rubber layer 61 can adapt to the shape of the concrete tank 1, thereby preventing the liquefied phase change material 63 from penetrating through it.

[0020] Reference Figures 1-2 Small holes are provided on the surface of the external insulation layer 2 that contacts the concrete tank 1. Binding steel wires 5 are inserted into the adjacent holes, and a strap 3 is provided at one end of the external insulation layer 2 to ensure that the entire insulation device is stable and does not fall off during transportation.

[0021] Working Principle: This invention can be specifically applied in high-altitude and cold regions. If the lowest winter temperature in such regions can reach -20℃, and the concrete transport distance is approximately 50 kilometers with a transport time of 1 hour, in this scenario, the phase change temperature regulating layer 6 and the external insulation layer 2 are first installed on the concrete tank 1 and secured using binding wires 5 and straps 3. Then, the resistance wire 71, powered by the quick-release lithium battery pack 4, is activated to preheat the phase change material 63, causing it to completely transform into a liquid state and store sufficient energy. During transport, as the ambient temperature drops, the phase change material 63 begins to release heat, maintaining the internal temperature of the tank above 0℃, effectively preventing concrete freeze-thaw expansion. Upon arrival at the destination, the concrete is unloaded, and the state of the phase change material 63 is checked. If some areas are found to have solidified, they can be restored to a liquid state by reheating for future use. This device maintains stable insulation even in extremely low-temperature environments, and a single charge can support at least 5 transport missions, significantly reducing energy consumption and operating costs.

[0022] It should be noted that inspectors can visually detect the state of the phase change material 63 by pressing the outer insulation layer 2. If the outer insulation layer 2 is difficult to press and deform, it indicates that the phase change material 63 has changed from a liquid to a semi-solid state. In this case, the resistance wire 71 needs to be used again to reheat the phase change material 63.

[0023] Furthermore, the design of this utility model fully considers the convenience of installation and disassembly. All components adopt a modular design, allowing users to flexibly adjust the size and quantity of the phase change temperature regulating layer 6 and the external insulation layer 2 according to actual needs. Meanwhile, since the external insulation layer 2 is made of flexible material, its installation process requires no additional tools; assembly can be completed simply by passing the binding wire 5 through the small hole and securing it with the strap 3. This design not only simplifies the construction process but also avoids affecting the load-bearing capacity of the concrete tank due to added weight. In addition, the introduction of the expanded graphite partition 62 further improves the safety and reliability of the device, effectively preventing leakage of the phase change material 63 even under severe vibration or accidental collision, ensuring the normal operation of the entire system.

[0024] 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 detachable concrete tank insulation device based on phase change material, comprising a concrete tank (1) for supporting concrete, characterized in that: Also includes: A phase change temperature regulating layer (6) is wrapped around the outer wall of the concrete tank (1). The phase change temperature regulating layer (6) includes a rubber layer (61), and several equidistant expanded graphite partitions (62) are provided on the inner wall of the rubber layer (61). The expanded graphite partitions (62) divide the cavity between the rubber layer (61) and the concrete tank (1) into multiple independent partitions, and each independent partition is filled with a phase change material (63). A heating component (7) is provided inside the rubber layer (61), while a quick-release lithium battery pack (4) that powers the heating component (7) is provided outside the concrete tank (1).

2. The detachable concrete tank insulation device based on phase change material according to claim 1, characterized in that: The heating assembly (7) includes several resistance wires (71), which are arranged along the longitudinal direction of the rubber layer (61) and embedded in several expanded graphite partitions (62) and phase change material (63). Each rubber layer (61) has terminals (72) welded to both ends, and adjacent terminals (72) are connected to each other by parallel wires (73).

3. The detachable concrete tank insulation device based on phase change material according to claim 1, characterized in that: The phase change material (63) is made of paraffin with a phase change temperature of -5°C.

4. A detachable concrete tank insulation device based on phase change material according to claim 2, characterized in that: The resistance wire (71) has a power of 200-300W, and the quick-release lithium battery pack (4) is detachably connected to the heating component (7) through a wire. The capacity of the quick-release lithium battery pack (4) is 20-30Ah.

5. A detachable concrete tank insulation device based on phase change material according to claim 1, characterized in that: The phase change temperature regulating layer (6) is wrapped with an external insulation layer (2), and both the external insulation layer (2) and the rubber layer (61) are made of flexible rubber material.

6. A detachable concrete tank insulation device based on phase change material according to claim 5, characterized in that: Small holes are provided on the surface of the external insulation layer (2) that is in contact with the concrete tank (1), and binding steel wires (5) are inserted into adjacent small holes. A strap (3) is provided at one end of the external insulation layer (2).

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