Graphene coating material and complete heating system

Abstract

The invention relates to the technical field of graphene coatings and heating systems, and discloses a graphene coating material and a whole set of heating system.The graphene coating material and the whole set of heating system comprise a heating coating, a conductive layer used for generating heat, a packaging layer made of a graphene material and a sealing material, and the protective layer is tightly combined with the protective layer to form a protective barrier, so that the influence of external factors such as rainwater, sand wind and vibration can be resisted, and the standard requirement of the waterproof grade IPX7 is met. According to the graphene coating material and the whole set of heating system, in order to make the graphene coating material and the whole set of heating system play a role in specific scenes that ice layers of optical fibers and cables need to be rapidly unfrozen or proper temperature of internal media needs to be maintained, rapid and uniform heat production of the heating coating is achieved through the characteristics of graphene; meanwhile, the system is endowed with good heating and heat preservation capabilities by virtue of the matching of the barrier property and the heat preservation reflecting layer, and the application scene requirements are met.

Description

Technical Field

[0001] The present invention relates to the technical field of graphene coatings and heating systems, and in particular to a graphene coating material and a complete heating system. Background Art

[0002] Optical fibers and cables are key transmission media in modern communications and many industrial and civil fields, and are widely used. In the communications industry, optical fibers are responsible for high-speed, large-capacity data transmission, ensuring the smooth operation of the global Internet, telephone communications, etc. In the fields of electricity and energy, cables are used to transmit electrical energy, etc., and are an indispensable part of maintaining the normal operation of various facilities.

[0003] With the continuous expansion of application scenarios and the diversification of environmental conditions, the performance requirements for optical fibers and cables in the environment are also increasing. In some cold areas or low-temperature working environments, such as outdoor communication facilities in the north in winter, and related equipment connection cables in polar scientific expeditions, optical fibers and cables are easily affected by low temperatures. Low temperatures may cause the transmission performance of optical fibers to decrease. Coating materials with good thermal insulation properties are critical to protecting optical fibers and cables from working normally in low-temperature environments. At the same time, in some specific application scenarios, optical fibers and cables themselves are also required to have a certain heating capacity. For example, in some situations where ice on the surface of optical fibers and cables needs to be thawed quickly, or in some situations where the temperature of the cables needs to be maintained to ensure that the internal transmission medium is in a suitable working temperature range, heating performance is particularly important.

[0004] At present, graphene coating materials cannot be used well to solve the above problems. As a new type of two-dimensional carbon nanomaterial, graphene has many excellent physical and chemical properties. It has high thermal conductivity and can quickly conduct heat, which provides a good basis for it to be used as a heating material. Moreover, graphene also has good barrier properties and can effectively block heat loss. As a result, it cannot protect optical fibers and cables well and give them heating and heat preservation effects. In view of this, we proposed a graphene coating material and a complete heating system. Summary of the invention

[0005] The purpose of the present invention is to provide a graphene coating material and a complete heating system to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A graphene coating material and a complete heating system, comprising:

[0008] A heat-generating coating for generating heat;

[0009] The conductive layer is made of graphene material;

[0010] The encapsulation layer uses sealing materials, which are closely combined with the protective layer to form a protective barrier, which can resist the influence of external factors such as rain, wind, sand and vibration. According to the standard requirements of the waterproof grade IPX7, it passes the waterproof test function based on pressure difference:

[0011] P text = ρgh

[0012] (where P test is the test pressure, ρ is the density of water, g is the acceleration of gravity, and h is the test water depth) to verify the waterproof performance and ensure that the system saturated water absorption rate is ≤0.5%;

[0013] The thermal insulation reflective layer, the thermal resistance coefficient of the thermal insulation material ranges from 0.01-0.025W / mK, and the thermal resistance calculation formula is:

[0014]

[0015] (where R th is thermal resistance, ΔT is temperature difference, Q is heat flow) and the heating coating cooperate with each other in structure to accurately control the transfer and dissipation of heat in the system, so that the heating temperature is maintained in the range of 20-50℃;

[0016] The protective layer is made of materials with high corrosion resistance, which can effectively resist corrosion factors in underground and above-ground environments, ensuring the durability and long-term stable operation of the system;

[0017] The temperature sensing component has a measurement range of -10 to 60°C and can accurately monitor the temperature of the system in real time. Based on the linear output characteristics of the temperature sensor (assuming that the output voltage is linearly related to the temperature:

[0018] V out =k T T+b

[0019] Where V out is the output voltage, k T is the temperature coefficient, T is the temperature, and b is the intercept) to transmit the temperature signal to the monitoring system;

[0020] Explosion-proof and moisture-proof joints are used to meet the explosion-proof and moisture-proof requirements in specific environments;

[0021] The monitoring system receives the temperature data collected by the temperature sensing components and the system's operating status information through a data transmission protocol (such as TCP / IP protocol), and uses data analysis software to analyze, process and visualize the received data. It can be monitored and controlled in real time by ground staff, combined with the load voltage and heating temperature range parameter settings of the heating system;

[0022] The failure protection system includes a circuit breaker. When a circuit breaker fails, such as a current overload, the circuit breaker can quickly cut off the circuit according to the principle of electromagnetic induction to prevent the fault from expanding.

[0023] Preferably, the graphene material of the conductive layer has a two-dimensional honeycomb lattice structure.

[0024] Preferably, the encapsulation layer and the protective layer are connected in a physical and chemical manner to achieve close integration, wherein:

[0025] Physical connection: First, use matching microscopic protrusions and depressions to achieve embedded fit and increase the contact area; second, apply appropriate external pressure to expel air and promote close fit between the two layers.

[0026] Chemical connection: On the one hand, the surfaces of the two layers of materials are treated to give them reactive functional groups, forming chemical bonds when they are put together; on the other hand, adhesives are used, which chemically react with the two layers of materials to fill the gaps and enhance the tightness of the connection.

[0027] Preferably, the thermal insulation reflective layer analyzes and controls the transfer and distribution of heat in the system by adjusting the specific value of the thermal resistance coefficient of the thermal insulation material.

[0028] Preferably, the protective layer adopts a low-temperature adaptable material in a low-temperature environment (such as -55°C), and its thermal expansion coefficient controls the dimensional change of the component at low temperature to avoid structural damage caused by thermal expansion and contraction.

[0029] Preferably, the system is designed to have a thickness (mm) ≤ 10 and a tensile yield strength of MPa ≥ 50. The material exhibits good elastic deformation properties when subjected to tensile force, can effectively resist tensile deformation, and ensure the structural integrity of the system.

[0030] Preferably, the cantilever beam impact strength of the system is kJ / m 2 (-40℃)≥6, shrinkage (-55℃)≤1%, achieved through sophisticated material design and process control, ensuring that the system can maintain stable physical properties when subjected to external shock or temperature changes at different ambient temperatures.

[0031] Preferably, the data transmission protocol used by the monitoring system is the TCP / IP protocol, and the data analysis software used is self-developed monitoring analysis software.

[0032] Preferably, the circuit breaker in the failure protection system quickly cuts off the circuit when a current overload fault occurs in the circuit based on the principle of electromagnetic induction.

[0033] A graphene coating material for a complete heating system, the graphene coating material having the following characteristics:

[0034] The graphene material used in its conductive layer has a unique two-dimensional honeycomb lattice structure, and its carrier mobility can theoretically reach 200,000 cm 2 / (V·s), the conductive layer reduces resistance according to Ohm's law to achieve efficient current transmission under a load voltage range of 5-24V, ensuring that the heating coating can quickly generate uniform heat, meet the requirement of a heating temperature range of 20-50°C, and the maximum heating temperature difference on the surface is ≤3%. The maximum heating temperature difference on the surface is calculated as follows:

[0035]

[0036] (where ΔT max is the maximum surface temperature difference, T max is the maximum surface temperature, T min is the minimum surface temperature, T avg is the average temperature).

[0037] Compared with the prior art, the present invention provides a graphene coating material and a complete heating system, which have the following beneficial effects:

[0038] 1. The graphene coating material and the entire heating system can be used in specific scenarios such as the need to quickly thaw the ice layer of optical fiber and cable or maintain the appropriate temperature of the internal medium. The graphene coating material and the entire heating system can achieve rapid and uniform heat generation of the heating coating by utilizing the characteristics of graphene. At the same time, with the help of its barrier properties and thermal insulation reflective layer, the system is endowed with good heating and insulation capabilities to meet the needs of application scenarios.

[0039] 2. The graphene coating material and the entire heating system can effectively deal with the problem of decreased transmission performance of optical fibers and cables due to low temperatures in cold areas or low-temperature working environments. The heat transfer and loss can be accurately controlled through the thermal insulation reflective layer to maintain a suitable heating temperature range. The protective layer uses low-temperature adaptive materials to cope with the influence of low temperatures, which can ensure that optical fibers and cables work normally at low temperatures and ensure the stable transmission of data, electrical energy, etc.

[0040] 3. The graphene coating material and the entire heating system, the packaging layer and the protective layer are tightly combined to resist a variety of external factors. The protective layer is corrosion-resistant. The system can also adapt to different environmental conditions to ensure its stability and durability in complex environments. The system has good physical properties, and indicators such as tensile yield strength meet the standards. It can remain stable when subjected to external forces or temperature changes at different ambient temperatures, ensuring the integrity of the system structure and normal operation. It is equipped with a failure protection system and a monitoring system, which can cut off the circuit in time to prevent the expansion of the circuit fault, and can monitor and control in real time to ensure the safety and reliability of the system operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is an overall schematic diagram of the whole heating system of the present invention;

[0042] Figure 2 It is an overall schematic diagram of the monitoring system of the present invention;

[0043] Figure 3 It is an overall schematic diagram of the failure protection system of the present invention;

[0044] Figure 4 Schematic diagram of the connection between the encapsulation layer and the protective layer of the present invention;

[0045] Figure 5 It is a schematic diagram of the structure of the graphene coating material of the present invention. DETAILED DESCRIPTION

[0046] In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only embodiments of a part of the present application, rather than all of the embodiments.

[0047] Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative work should fall within the scope of protection of this application.

[0048] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so as to describe the embodiments of the present application described herein.

[0049] In addition, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or elements is not necessarily limited to those steps or elements explicitly listed, but may include other steps or elements not explicitly listed or inherent to such process, method, product, or apparatus.

[0050] See also Figure 1 - Figure 5 , the present invention provides a technical solution:

[0051] A graphene coating material and a complete heating system, comprising:

[0052] A heat-generating coating for generating heat;

[0053] The conductive layer is made of graphene material;

[0054] The sealing material used in the encapsulation layer is closely combined with the protective layer to form a protective barrier that can resist the influence of external factors such as rain, wind, sand and vibration. According to the standard requirements of the waterproof grade IPX7, it passes the waterproof test function based on pressure difference:

[0055] P test = ρgh

[0056] (where P test is the test pressure, ρ is the density of water, g is the acceleration of gravity, and h is the test water depth) to verify the waterproof performance and ensure that the system saturated water absorption rate is ≤0.5%;

[0057] The thermal insulation reflective layer, the thermal resistance coefficient of the thermal insulation material ranges from 0.01-0.025W / mK, and the thermal resistance calculation formula is:

[0058]

[0059] (where R th is thermal resistance, ΔT is temperature difference, Q is heat flow) and the heating coating cooperate with each other in structure to accurately control the transfer and dissipation of heat in the system, so that the heating temperature is maintained in the range of 20-50℃;

[0060] The protective layer is made of materials with high corrosion resistance, which can effectively resist corrosion factors in underground and above-ground environments, ensuring the durability and long-term stable operation of the system. Graphene coating materials and the entire heating system can play a role in specific scenarios such as the need to quickly thaw the ice layer of optical fibers and cables or maintain the appropriate temperature of their internal media. The graphene characteristics are used to achieve rapid and uniform heat generation of the heating coating. At the same time, with the help of its barrier properties and the thermal insulation reflective layer, the system is given good heating and insulation capabilities to meet the needs of application scenarios;

[0061] The temperature sensing component has a measurement range of -10 to 60°C and can accurately monitor the temperature of the system in real time. Based on the linear output characteristics of the temperature sensor, it is assumed that the output voltage is linearly related to the temperature:

[0062] V out =k T T+b

[0063] (Where V out is the output voltage, k T is the temperature coefficient, T is the temperature, and b is the intercept) to transmit the temperature signal to the monitoring system;

[0064] Explosion-proof and moisture-proof joints are used to meet the explosion-proof and moisture-proof requirements in specific environments;

[0065] The monitoring system receives the temperature data collected by the temperature sensing components and the system's operating status information through data transmission protocols (such as TCP / IP protocols), and uses data analysis software to analyze, process and visualize the received data. It can be monitored and controlled in real time by ground staff. Combined with the load voltage and heating temperature range parameter settings of the heating system, the encapsulation layer and the protective layer are closely combined to resist a variety of external factors. The protective layer is corrosion-resistant, and the system can also adapt to different environmental conditions to ensure its stability and durability in complex environments. The system has good physical properties, and indicators such as tensile yield strength meet the standards. It can remain stable when subjected to external forces or temperature changes at different ambient temperatures, ensuring the integrity of the system structure and normal operation;

[0066] The failure protection system includes a circuit breaker. When a circuit breaker fails, such as current overload, the circuit breaker can quickly cut off the circuit based on the principle of electromagnetic induction. The failure protection system and monitoring system can cut off the circuit in time to prevent the expansion of the circuit fault, and can monitor and control in real time to ensure the safety and reliability of the system operation.

[0067] In one embodiment of the present invention, the graphene material of the conductive layer has a two-dimensional honeycomb lattice structure. Furthermore, the encapsulation layer and the protective layer are connected in a manner of physical and chemical connection to achieve close bonding, wherein:

[0068] Physical connection: First, use matching microscopic protrusions and depressions to achieve embedded fit and increase the contact area; second, apply appropriate external pressure to expel air and promote close fit between the two layers.

[0069] Chemical connection: On the one hand, the surfaces of the two layers of materials are treated to give them reactive functional groups, forming chemical bonds when they are fitted together; on the other hand, adhesives are used to chemically react with the two layers of materials, filling the gaps while enhancing the tightness of the connection. The two connection methods work synergistically to ensure the protective barrier effect, which can effectively address the problem of optical fiber and cable transmission performance degradation due to low temperatures. The thermal insulation reflective layer accurately controls heat transfer and loss, maintains a suitable heating temperature range, and the protective layer uses low-temperature adaptive materials to cope with the effects of low temperatures, which can ensure the normal operation of optical fibers and cables at low temperatures and ensure the stable transmission of data, electrical energy, etc.

[0070] In one embodiment of the present invention, the thermal insulation reflective layer is formed by adjusting the specific value of the thermal resistance coefficient of the thermal insulation material according to the heat conduction formula.

[0071]

[0072] (where Q is heat flow, k is thermal conductivity, A is heat transfer area, ΔT is temperature difference, and L is heat transfer length) is used to analyze and control the transfer and distribution of heat in the system. Furthermore, the protective layer adopts low-temperature adaptive materials in low-temperature environments (such as -55°C), and its thermal expansion coefficient controls the dimensional changes of components at low temperatures to avoid structural damage caused by thermal expansion and contraction. Furthermore, the system achieves a design with a thickness (mm) ≤ 10 and a tensile yield strength of MPa ≥ 50. The material exhibits good elastic deformation characteristics when subjected to tensile force, and can effectively resist tensile deformation under certain conditions to ensure the structural integrity of the system.

[0073] In one embodiment of the present invention, the Izod impact strength of the system is kJ / m 2 (-40℃)≥6, shrinkage rate (-55℃)≤1%, achieved through sophisticated material design and process control, ensuring that the system can maintain stable physical properties when subjected to external force shock or temperature changes at different ambient temperatures. Furthermore, the data transmission protocol used by the monitoring system is the TCP / IP protocol. Furthermore, the circuit breaker in the failure protection system quickly cuts off the circuit when a current overload fault occurs in the circuit based on the principle of electromagnetic induction.

[0074] A graphene coating material for a complete heating system, the graphene coating material has the following characteristics:

[0075] The graphene material used in its conductive layer has a two-dimensional honeycomb lattice structure, and its carrier mobility can theoretically reach 200,000 cm 2 / (V·s), when the load voltage range is 5-24V, the conductive layer reduces the resistance according to Ohm's law to achieve efficient current transmission, ensuring that the heating coating can quickly generate uniform heat, meet the requirements of the heating temperature range of 20-50℃, and the maximum heating temperature difference on the surface is ≤3%. The calculation formula for the maximum heating temperature difference on the surface is:

[0076]

[0077] (where ΔT max is the maximum surface temperature difference, T max is the maximum surface temperature, T min is the minimum surface temperature, T avg is the average temperature).

[0078] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A complete heating system, characterized in that: include: A heat-generating coating for generating heat; The conductive layer is made of graphene material; The encapsulation layer uses sealing materials, which are closely combined with the protective layer to form a protective barrier, which can resist the influence of external factors such as rain, wind, sand and vibration. According to the standard requirements of the waterproof grade IPX7, it passes the waterproof test function based on pressure difference: P test =ρgh (where P test is the test pressure, ρ is the density of water, g is the acceleration of gravity, and h is the test water depth) to verify the waterproof performance and ensure that the system saturated water absorption rate is ≤0.5%; The thermal insulation reflective layer, the thermal resistance coefficient of the thermal insulation material ranges from 0.01-0.025W / mK, and the thermal resistance calculation formula is: (where R th is thermal resistance, ΔT is temperature difference, Q is heat flow) and the heating coating cooperate with each other in structure to accurately control the transfer and dissipation of heat in the system, so that the heating temperature is maintained in the range of 20-50℃; The protective layer is made of materials with high corrosion resistance, which can effectively resist corrosion factors in underground and above-ground environments, ensuring the durability and long-term stable operation of the system; The temperature sensing component has a measurement range of -10 to 60°C and can accurately monitor the temperature of the system in real time. Based on the linear output characteristics of the temperature sensor (assuming that the output voltage is linearly related to the temperature: V out =k T T+b Where V out is the output voltage, k T is the temperature coefficient, T is the temperature, and b is the intercept) to transmit the temperature signal to the monitoring system; Explosion-proof and moisture-proof joints are used to meet the explosion-proof and moisture-proof requirements in specific environments; The monitoring system receives the temperature data collected by the temperature sensing components and the system's operating status information through a data transmission protocol (such as TCP / IP protocol), and uses data analysis software to analyze, process and visualize the received data. It can be monitored and controlled in real time by ground staff, combined with the load voltage and heating temperature range parameter settings of the heating system; The failure protection system includes a circuit breaker. When a circuit breaker fails, such as a current overload, the circuit breaker can quickly cut off the circuit according to the principle of electromagnetic induction to prevent the fault from expanding.

2. A complete heating system according to claim 1, characterized in that: The graphene material of the conductive layer has a two-dimensional honeycomb lattice structure.

3. A complete heating system according to claim 2, characterized in that: The encapsulation layer and the protective layer are connected in a physical and chemical manner to achieve tight integration.

4. A complete heating system according to claim 3, characterized in that: The thermal insulation reflective layer analyzes and controls the transfer and distribution of heat in the system by adjusting the specific value of the thermal resistance coefficient of the thermal insulation material.

5. A complete heating system according to claim 4, characterized in that: The protective layer is made of a low-temperature adaptable material in a low-temperature environment (such as -55°C), and its thermal expansion coefficient controls the dimensional change of the component at low temperatures to avoid structural damage caused by thermal expansion and contraction.

6. A complete heating system according to claim 5, characterized in that: The system is designed to have a thickness (mm) ≤ 10 and a tensile yield strength of MPa ≥ 50. The material exhibits good elastic deformation properties when subjected to tensile force, can effectively resist tensile deformation, and ensure the structural integrity of the system.

7. A complete heating system according to claim 6, characterized in that: Izod impact strength of the system kJ / m 2 (-40℃)≥6, shrinkage (-55℃≤1%), achieved through sophisticated material design and process control, ensuring that the system can maintain stable physical properties when subjected to external shock or temperature changes at different ambient temperatures.

8. A complete heating system according to claim 7, characterized in that: The data transmission protocol used by the monitoring system is the TCP / IP protocol.

9. A complete heating system according to claim 8, characterized in that: The circuit breaker in the failure protection system quickly cuts off the circuit according to the principle of electromagnetic induction when a current overload fault occurs in the circuit.

10. A graphene coating material for the complete heating system according to any one of claims 1 to 9, characterized in that: The graphene coating material has the following characteristics: The graphene material used in its conductive layer has a unique two-dimensional honeycomb lattice structure, and its carrier mobility can theoretically reach 200,000 cm 2 / (V·s), the conductive layer reduces resistance according to Ohm's law to achieve efficient current transmission under a load voltage range of 5-24V, ensuring that the heating coating can quickly generate uniform heat, meet the requirement of a heating temperature range of 20-50°C, and the maximum heating temperature difference on the surface is ≤3%. The maximum heating temperature difference on the surface is calculated as follows: (where ΔT max is the maximum surface temperature difference, T max is the maximum surface temperature, T min is the minimum surface temperature, T avg is the average temperature).

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