Reusable carbon fiber self-heating thermal insulation blanket

Abstract

The invention relates to a reusable carbon fiber self-heating heat preservation blanket which comprises a heat preservation blanket body, a temperature monitoring and control system and a splicing assembly. A heat preservation layer, a heating layer and an outer protection layer are sequentially arranged on the heat preservation blanket body from inside to outside in a stacked mode. The temperature monitoring and control system comprises at least one temperature sensor and a temperature controller, and the temperature sensor is embedded in the inner side of the heat preservation layer; the temperature controller is electrically connected with the heating layer, the temperature sensor and an external power supply; the splicing assemblies are arranged on the edges of the heat preservation blanket bodies and used for mechanically splicing the multiple heat preservation blanket bodies. According to the invention, the carbon fiber heating bundle is used for actively supplying heat, and the intelligent temperature control system is combined, so that accurate and constant-temperature curing of concrete is realized; the modular design facilitates rapid pavement and expansion and adapts to different engineering requirements; main materials are firm and durable and can be repeatedly used, and the technical problems that traditional heat preservation measures are low in efficiency, high in risk and non-repeatable are effectively solved.

Description

Technical Field

[0001] This invention relates to the field of concrete winter construction insulation technology, and in particular to a reusable carbon fiber self-heating insulation blanket. Background Technology

[0002] The main function of thermal insulation blankets is to ensure that concrete constructed in winter maintains its strength and continues to grow under low temperatures. There are two traditional methods for concrete insulation: (1) the heated shed method, which involves building a heated shed in the concrete pouring area, where furnaces, hot air blowers, and other equipment can be used to heat the concrete and allow it to harden in a positive temperature environment. (2) the heat storage method, which utilizes the heat of the concrete itself and the heat of hydration of cement, by covering the concrete surface with insulation materials to allow the heat to dissipate slowly and extend the positive temperature curing time of the concrete. For example, covering the concrete foundation surface with multiple layers of straw mats for insulation.

[0003] The greenhouse method of heat preservation requires the prior erection of a frame. These frames are typically welded from steel pipes / reinforcing bars, making them very inconvenient to move, limited by site conditions, and poorly wind-resistant, easily causing injury and property damage in strong winds. Furthermore, the stoves and hot air blowers installed inside the greenhouse can easily cause fires.

[0004] The heat storage method utilizes the heat of the concrete itself and covers it with straw mats, cotton quilts, etc. for insulation. Its insulation effect depends on the volume of the structure and is not effective for thin-walled structures. In addition, traditional insulation materials cannot actively provide heat, pose a fire risk, and are difficult to reuse.

[0005] Therefore, the market urgently needs a heat preservation device that can generate heat actively, is reusable, easy to construct, and safe. Summary of the Invention

[0006] The present invention aims to overcome the shortcomings of the prior art and provide a reusable carbon fiber self-heating insulation blanket.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a reusable carbon fiber self-heating insulation blanket, comprising:

[0008] The main body of the thermal blanket consists of a thermal insulation layer, a heating layer, and an outer protective layer layer stacked from the inside out. The heating layer is composed of several carbon fiber heating bundles.

[0009] A temperature monitoring and control system includes at least one temperature sensor and a temperature controller. The temperature sensor is embedded inside the insulation layer and is used to contact the surface of the concrete component being tested to collect temperature data.

[0010] The temperature controller is electrically connected to the carbon fiber heating bundle, temperature sensor and external power supply, and is used to control the start-up and shutdown and power of the carbon fiber heating bundle according to the data collected by the temperature sensor and the preset temperature.

[0011] The splicing assembly, located at the edge of the insulation blanket body, is used to mechanically splice multiple insulation blanket bodies to cover a larger area of ​​concrete components.

[0012] Specifically, the insulation layer is made of insulation cotton, the outer protective layer is made of ceramic carbon fiber, several carbon fiber heating bundles are equally spaced and buried in the insulation cotton and fixed by carbon fiber grid, and the ceramic fiber blanket is fixed to the outside of the insulation cotton by knitting.

[0013] Specifically, the carbon fiber heating bundle is an electrothermal composite structure bundle composed of carbon fiber grid and heating wire.

[0014] Specifically, the temperature controller is equipped with a real-time digital temperature display interface and temperature adjustment buttons.

[0015] In particular, the splicing components are zippers, and two adjacent thermal blanket bodies are connected as one unit by zipper teeth and sliding zipper pulls respectively set on their mating edges.

[0016] In particular, the splicing components are Velcro fasteners, and two adjacent thermal blanket bodies are connected as one unit by the mutual adhesion of the hook and fleece surfaces respectively set on their mating edges.

[0017] Specifically, when adjacent insulation blankets are spliced ​​together, the carbon fiber heating bundles inside are connected by a quick-connect electrical connector and controlled by the same temperature controller.

[0018] The beneficial effects of this invention are:

[0019] Active heating and efficient insulation: The carbon fiber heating bundle actively provides a heat source, overcoming the limitations of traditional insulation materials that rely on the heat of the concrete itself. It is especially suitable for thin-walled structures and ensures the continuous increase of concrete strength.

[0020] Intelligent and precise temperature control: The integrated temperature monitoring and control system can monitor the concrete surface temperature in real time and automatically adjust the heating power, achieving precise constant temperature curing and effectively avoiding the impact of excessively high or low temperatures on the quality of concrete.

[0021] Modular splicing and rapid construction: Through unique splicing components (zippers, Velcro) and quick electrical connectors, the insulation blanket can be infinitely expanded to easily cover components of various shapes and sizes, greatly improving construction efficiency and adaptability.

[0022] High durability and reusability: The main materials (carbon fiber and ceramic fiber blankets) have extremely high tensile strength, high temperature resistance and chemical corrosion resistance. The structure is sturdy, which fundamentally solves the problems of traditional straw mats and cotton quilts being easily damaged and difficult to reuse. It has a long service life and low overall cost.

[0023] Safe and reliable: The entire system uses electric heating, eliminating the risk of open flame; the outer ceramic fiber blanket is an A1-grade non-combustible material, fundamentally eliminating fire hazards. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the main structure of the thermal insulation blanket of the present invention;

[0026] Figure 3 This is a schematic diagram of the temperature controller structure of the present invention;

[0027] In the diagram: 1-Insulation layer; 2-Heating layer; 3-Outer protective layer; 4-Temperature sensor; 5-Temperature controller; 6-External power supply; 7-Assembly assembly;

[0028] The following will describe in detail, with reference to the accompanying drawings, embodiments of the present invention. Detailed Implementation

[0029] The present invention will be further described below with reference to embodiments:

[0030] like Figures 1-3 As shown, a reusable carbon fiber self-heating insulation blanket includes an insulation blanket body, a temperature monitoring and control system, and splicing components.

[0031] The main body of the thermal blanket consists of an insulation layer 1, a heating layer 2, and an outer protective layer 3, which are stacked sequentially from the inside to the outside. The heating layer 2 is composed of several carbon fiber heating bundles. The insulation layer is made of insulation cotton, and the outer protective layer is made of ceramic carbon fiber. Several carbon fiber heating bundles are buried in the insulation cotton at equal intervals and fixed by carbon fiber grids. The ceramic fiber blanket is fixed to the outside of the insulation cotton by knitting.

[0032] The heating layer 2 is integrated inside the insulation layer 1, forming an integrated "heating-insulation" module. The heat generated by the carbon fiber heating bundles can be quickly absorbed and evenly diffused by the insulation cotton, effectively avoiding localized overheating. At the same time, the excellent heat storage and low thermal conductivity of the insulation cotton itself can minimize the outward loss of heat, ensuring that heat is concentrated and evenly transferred to the concrete structure, achieving extremely high thermal efficiency and energy economy.

[0033] The inner side of the insulation layer 1 is in direct contact with the concrete surface. This eliminates the air gap that may exist in traditional solutions, reduces thermal resistance, and allows heat to be transferred to the concrete more quickly. At the same time, the temperature sensor 4 set inside the insulation layer 1 can more sensitively and accurately detect the real temperature changes of the concrete surface, thus ensuring precise temperature control.

[0034] The outer ceramic fiber blanket is made using a specially reinforced needle-punching process. This process contains no binders or other components, and the reinforced needle-punching process correspondingly improves the interweaving degree of the fibers and the blanket's anti-delamination performance, giving it good tensile strength without affecting its flexibility. Installation is simple, greatly accelerating construction speed. Except for hydrofluoric acid, phosphoric acid, and strong alkalis, it is not corroded by most other chemicals. It features thermal shock resistance, low thermal conductivity and low heat capacity, good fiber elasticity, and low high-temperature shrinkage.

[0035] Carbon fiber heating bundles are electrothermal composite structures made of carbon fiber grids and heating wires. This material combines carbon fiber grids and heating wires to form a composite structure that uses electric heating. Carbon fiber heating wires in specifications of 6K, 12K, and 24K can be selected according to different external temperatures. Advantages of carbon fiber heating wires: electrothermal conversion efficiency of over 98%, heating efficiency more than 30% higher than metal wires, and tensile strength 6-10 times higher than metal wires.

[0036] The temperature monitoring and control system includes at least one temperature sensor 4 and a temperature controller 5. The temperature sensor 4 is embedded inside the insulation layer 1 and is used to contact the surface of the concrete component being tested to collect temperature data. This arrangement enables direct, in-situ monitoring of the curing target (concrete), avoids errors caused by monitoring ambient air temperature, and fundamentally ensures the accuracy of the curing temperature.

[0037] The temperature controller 5 is electrically connected to the carbon fiber heating bundle, temperature sensor 4, and external power supply 6. It controls the start / stop and power of the carbon fiber heating bundle based on data collected by the temperature sensor 4 and the preset temperature. The temperature controller 5 features a real-time digital temperature display interface and temperature adjustment buttons. After the user sets the expected curing temperature, the temperature controller 5 continuously compares the concrete surface temperature returned by the temperature sensor 4 with the set value, automatically and precisely adjusting the power or starting / stopping of the carbon fiber heating bundle. Without manual intervention, it creates a continuous and stable optimal strength growth environment for the concrete.

[0038] The splicing component 7 is located at the edge of the insulation blanket body and is used to mechanically splice multiple insulation blanket bodies to cover a larger area of ​​concrete components.

[0039] The splicing component 7 is a zipper, and two adjacent thermal blanket bodies are connected as one unit by the engagement of zipper teeth and sliding zipper pulls respectively set on their mating edges.

[0040] The splicing component 7 is a Velcro fastener, and two adjacent thermal blanket bodies are connected as one unit by the mutual adhesion of the hook and fleece surfaces respectively set on their mating edges.

[0041] When adjacent insulation blankets are spliced ​​together, the carbon fiber heating bundles inside them are connected by a quick electrical connector and are uniformly controlled by the same temperature controller 5.

[0042] The modular design enables seamless expansion of electrical and thermal power. Multiple insulation blanket units can be rapidly combined mechanically and electrically, like "puzzle pieces," to form a large-area integrated heating system. All units can be uniformly powered and intelligently controlled by the same temperature controller, greatly simplifying on-site wiring and improving construction efficiency and system integrity.

[0043] The construction steps of this invention are as follows:

[0044] Step 1: Laying and splicing;

[0045] First, one or more insulation blankets are placed over the surface of the concrete structure requiring curing. For large or irregularly shaped structures, multiple insulation blankets are quickly and mechanically joined together using the splicing components 7 (such as zippers or Velcro fasteners) at their edges to form a complete covering layer, which is then secured with elastic cords after wrapping the concrete structure. The modular design allows the insulation blankets to flexibly adapt to project needs of any size and shape, enabling extremely fast construction and overcoming the cumbersome scaffolding and site limitations of traditional greenhouse methods.

[0046] Step 2: Electrical interconnection;

[0047] While completing the mechanical splicing, the carbon fiber heating bundles inside adjacent insulation blankets are connected via quick-connect electrical connectors to establish electrical connectivity. Finally, the power cord of the main insulation blanket is connected to temperature controller 5, and temperature controller 5 is then connected to an external power source 6. This step achieves simultaneous completion of "mechanical splicing" and "electrical interconnection," with all spliced ​​units forming a unified heating system that can be centrally managed by a single temperature controller 5. The wiring is simple, and the operation is safe and convenient.

[0048] Step 3: System startup and intelligent temperature control;

[0049] Operators use the temperature adjustment buttons on the temperature controller 5 to set the required concrete curing temperature (e.g., 20℃) according to construction specifications and ambient temperature. After the system is started, the temperature sensor 4, embedded inside the insulation layer 1, begins to collect the actual temperature of the concrete surface in real time and accurately, feeding the data back to the temperature controller 5. The controller 5 compares the collected values ​​with the set values ​​and automatically controls the start / stop and power of the carbon fiber heating bundles through its internal logic circuit. This process achieves precise constant temperature curing around the clock, completely avoiding errors and lags in manual monitoring. It prevents concrete from freezing and also avoids excessively rapid moisture evaporation caused by excessively high temperatures, comprehensively ensuring the curing quality of the concrete.

[0050] Step 4: Continuous operation and status monitoring;

[0051] During the curing process, the system operates continuously and automatically. The carbon fiber heating bundles, with their high electrothermal conversion efficiency of up to 98%, efficiently convert electrical energy into heat. The heat is first transferred to the surrounding insulation layer 1 (insulation cotton). This layer serves two purposes: firstly, it acts as a uniform heat diffusion layer, preventing localized overheating; secondly, it acts as a heat storage layer, utilizing its low heat capacity to work in conjunction with the outer protective layer 3 (ceramic fiber blanket) to minimize heat loss and concentrate heat on the concrete structure. Operators can intuitively monitor the real-time temperature at any time through the digital display interface on the temperature controller 5, eliminating the need for additional temperature monitoring devices. This process forms a closed loop of "active heating, efficient insulation, and intelligent control," resulting in high energy utilization efficiency, uniform and stable curing effects, and full visibility throughout the process, significantly reducing the labor intensity of workers.

[0052] Step 5: Disassembly and recycling;

[0053] Once the concrete has reached the expected curing strength, first disconnect the power supply and unplug the quick-connect electrical connector. Then, detach the splicing assembly 7 to remove the insulation blanket from the concrete structure. Due to the excellent tensile strength and durability of the outer protective layer 3, and the robust design of the overall structure, the insulation blanket is not easily damaged during disassembly and rewinding. After simple cleaning and inspection, it can be packed and transported to the next construction site for multiple reuses. This process completely changes the traditional "disposable" or "easily damaged and consumable" nature of insulation materials, significantly reducing the long-term cost of construction materials and the generation of construction waste, resulting in outstanding economic and environmental benefits.

[0054] This invention achieves precise and constant-temperature curing of concrete by actively heating with carbon fiber heating bundles and combining them with an intelligent temperature control system. Its modular design facilitates rapid installation and expansion, adapting to different engineering needs. Furthermore, the main materials are sturdy and durable, and can be reused multiple times, effectively solving the technical problems of low efficiency, high risk, and non-repeatability of traditional insulation measures.

[0055] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0056] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0057] The present invention has been described above by way of example. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any improvements made by adopting the inventive concept and technical solution of the present invention, or direct application to other occasions without modification, are all within the protection scope of the present invention.

Claims

1. A reusable carbon fiber self-heating insulation blanket, characterized in that, include: The main body of the thermal blanket is composed of a thermal insulation layer (1), a heating layer (2) and an outer protective layer (3) stacked from the inside to the outside. The heating layer (2) is composed of several carbon fiber heating bundles. The temperature monitoring and control system includes at least one temperature sensor (4) and a temperature controller (5). The temperature sensor (4) is embedded inside the insulation layer (1) and is used to contact the surface of the concrete component to be tested to collect temperature data. The temperature controller (5) is electrically connected to the carbon fiber heating bundle, the temperature sensor (4) and the external power supply (6) to control the start-up and power of the carbon fiber heating bundle based on the data collected by the temperature sensor (4) and the preset temperature. The splicing component (7) is located at the edge of the thermal insulation blanket body and is used to mechanically splice multiple thermal insulation blanket bodies to cover a larger area of ​​concrete components.

2. The reusable carbon fiber self-heating insulation blanket according to claim 1, characterized in that, The insulation layer is made of insulation cotton, and the outer protective layer is made of ceramic carbon fiber. Several carbon fiber heating bundles are buried in the insulation cotton at equal intervals and fixed by carbon fiber grids. The ceramic fiber blanket is fixed to the outside of the insulation cotton by knitting.

3. The reusable carbon fiber self-heating insulation blanket according to claim 1, characterized in that, Carbon fiber heating bundle is an electrothermal composite structure bundle composed of carbon fiber grid and heating wire.

4. The reusable carbon fiber self-heating insulation blanket according to claim 1, characterized in that, The temperature controller (5) is equipped with a real-time digital temperature display interface and temperature adjustment buttons.

5. A reusable carbon fiber self-heating insulation blanket according to claim 1, characterized in that, The splicing component (7) is a zipper, and two adjacent thermal blanket bodies are connected by the meshing of the zipper teeth and the sliding zipper head respectively set on their mating edges.

6. A reusable carbon fiber self-heating insulation blanket according to claim 1, characterized in that, The splicing component (7) is a Velcro fastener, and two adjacent thermal blanket bodies are connected together by the mutual bonding of the hook face and the fleece face set on their respective docking edges.

7. A reusable carbon fiber self-heating insulation blanket according to claim 5 or 6, characterized in that, When adjacent thermal blankets are spliced ​​together, the carbon fiber heating bundles inside them are connected by a quick electrical connector and are uniformly controlled by the same temperature controller (5).

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