Nano-silver mixed heat storage agent

Abstract

The invention provides a nano-silver mixed heat storage agent which is specifically characterized in that the mixed heat storage agent is mixed heat conduction liquid and comprises nano-silver particles and other metal elements, the nano-silver particles form a three-dimensional heat conduction network structure in base liquid, and efficient heat transfer is achieved. The floor heating system comprises a pipeline, the pipeline is filled with the nano-silver mixed heat storage agent serving as a heat conducting medium, and the floor heating system further comprises resistance heating elements arranged at the two ends of the pipeline and used for converting electric energy into heat energy and conducting heat transfer through the mixed heat storage agent. The heat conductivity coefficient of the mixed heat storage agent exceeds 2000 W / m.K and is 300% of that of water, heat is transmitted through a three-dimensional heat conduction network in a phonon vibration and Brownian motion dual-path mode, heat diffusion with nearly zero heat resistance is achieved, the system heat conversion efficiency reaches up to 99%, energy is saved by 24% or above compared with traditional floor heating, and the mixed heat storage agent is suitable for energy-saving buildings and low in long-term operation cost.

Description

Technical Field

[0001] This invention relates to a nano-silver mixed heat storage agent, and more particularly to nano-silver mixed heat storage components and their applications. Background Technology

[0002] Currently, traditional underfloor heating systems, especially electric and water-based systems, generally suffer from low heat transfer efficiency, slow heating, high energy consumption, and high maintenance costs. For example, carbon fiber and water-based underfloor heating systems experience significant heat loss during heat transfer, resulting in low heat conversion efficiency. Furthermore, water-based systems are prone to scaling and corrosion, requiring regular cleaning and maintenance, increasing user costs and maintenance burdens. Therefore, there is an urgent need for a new type of heat transfer medium that offers high thermal conductivity, rapid start-up, energy efficiency, environmental friendliness, and long-term maintenance-free operation. Summary of the Invention

[0003] In view of this, in order to solve the problems existing in the technical background, the present invention proposes a nano-silver mixed heat storage agent composition and its application. Specifically, it includes the following: A nano-silver hybrid thermal storage agent composition and its application are disclosed. The nano-silver hybrid thermal storage agent is a mixed thermally conductive liquid containing nano-silver particles and other metal elements. The nano-silver particles form a three-dimensional thermally conductive network structure in the base liquid, achieving efficient heat transfer. Due to its unique physicochemical properties, such as high specific surface area, excellent antibacterial properties, and good thermal conductivity, nano-silver exhibits broad application potential in multiple fields. Furthermore, the mixed thermal storage agent has high thermal conductivity, with a thermal conductivity coefficient significantly higher than that of water. During heat transfer, the mixed thermal storage agent achieves low thermal resistance thermal diffusion through the synergistic effect of phonon vibration and Brownian motion. Furthermore, the mixed heat storage agent inhibits oxidation and corrosion reactions through the action of nano-silver ions, thereby extending its service life. Components: 1. Oily base fluid: 85% - 98.5% 2. Main thermal filler: Nano-silver particles, 1% - 10% 3. Auxiliary thermally conductive filler: Other metal or metal oxide nanoparticles, 0.5% - 5% 4. Composite surface modifier: 0.5% - 4% 5. High-performance dispersant: 0.1% - 1% Preparation method: Prepare according to the following proportions: Mix 3g of nano-silver and 2g of nano-alumina. Dissolve 1g of composite surface modifier in 50mL of ethanol, mix with the mixed filler under stirring, react at 70°C for 3 hours, centrifuge, wash, and dry to obtain an oleophilic composite powder. Mix 0.5g of dispersant with 300g of phenyl silicone oil, add the above 5g of oleophilic composite powder, and grind three times with a three-roll mill to obtain a paste-like concentrate. The remaining 645g of phenyl silicone oil was mixed with the paste concentrate at 60°C for 1.5 hours, and then homogenized under high pressure at 150 MPa for 6 cycles. The resulting product had a thermal conductivity of 1.8 W / m·K and a volume resistivity of 5.6 × 10^13 Ω·cm. An application of a nano-silver mixed heat storage agent in a floor heating system is characterized in that the floor heating system includes pipes filled with the nano-silver mixed heat storage agent as a heat conducting medium. Furthermore, the floor heating system also includes resistance heating elements disposed at both ends of the pipes for converting electrical energy into heat energy and transferring the heat through the nano-silver mixed heat storage agent. Furthermore, the floor heating system achieves rapid heating through the mixed heat storage agent and conducts heat evenly along the entire length of the pipe. Furthermore, the floor heating system releases heat into the room through a combination of radiation and convection. The floor heating system has low power density operation characteristics, making it suitable for energy-saving building environments. The floor heating system has long-term maintenance-free performance, requiring no regular cleaning or replacement of the heat transfer medium. The above technical solution has the following beneficial effects: The nano-silver hybrid thermal storage agent in this invention has a thermal conductivity exceeding 2000 W / m·K, which is 300% that of water. Heat is transferred through a three-dimensional thermally conductive network via a dual path of phonon vibration and Brownian motion, achieving near-zero thermal resistance heat diffusion. The system's thermal conversion efficiency reaches 99%, saving more than 24% energy compared to traditional underfloor heating, making it suitable for energy-efficient buildings with low long-term operating costs. Nano-silver ions inhibit oxidation and corrosion, extending the hybrid thermal storage agent's lifespan to over 10 years. The system has a self-cleaning function, eliminating the need for acid washing, medium replacement, or other maintenance operations, making it worry-free to use. This is a safe, intelligent conductive fluid whose metal ratio can be precisely controlled to alter conductivity, and it has passed biocompatibility verification, making it absolutely harmless to the human body. Detailed Implementation The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. This invention provides a nano-silver hybrid thermal storage agent, which is a mixed thermally conductive liquid. The main component is nano-silver particles, supplemented with other metallic elements. The nano-silver particles are uniformly dispersed in the base liquid, forming a three-dimensional thermally conductive network structure. This structure allows heat to be transferred through a combination of phonon vibration and Brownian motion, achieving efficient and low-thermal-resistance thermal diffusion. The thermal conductivity of the hybrid thermal storage agent exceeds 2000 W / m·K, far higher than that of water, exhibiting excellent thermal conductivity. Simultaneously, the nano-silver ions effectively inhibit oxidation and corrosion reactions in the liquid, thereby significantly extending the service life of the nano-hybrid thermal storage agent to over 10 years. The quality control of mixed thermal storage agents must adhere to strict industry standards, including indicators such as particle size, distribution, purity, and stability. Particle size directly affects its performance, and uniform particle size distribution is generally required to ensure solution stability and application effectiveness. Example 1: This mixed thermal storage agent is applied to an underfloor heating system as a heat transfer medium within the pipes. The underfloor heating system also includes resistance heating elements installed at both ends of the pipes. These elements employ precision resistance direct heating technology, achieving a heat conversion efficiency of 99.2%. When the system is powered on, the resistance heating elements rapidly generate heat, which is transferred through the mixed thermal storage agent. Due to the extremely high thermal conductivity and three-dimensional heat-conducting network structure of the mixed thermal storage agent, heat can be transferred to the entire length of the pipe within seconds, achieving rapid start-up and uniform temperature rise. For example, in actual tests, the system raised the surface temperature from 18°C ​​to 28°C within 3 minutes and achieved stable heating throughout the house within 20 minutes. Example 2. The underfloor heating system releases heat into the room in two ways: approximately 70% is far-infrared radiation, with wavelengths in the range of 8-14μm, matching the infrared absorption band of the human body, directly heating objects and providing a comfortable perceived temperature; the remaining 30% is natural convection, forming a micro-circulation by heating the air above the floor, further homogenizing the indoor temperature. This system is designed with a low power density of only 37W / ㎡, enabling efficient operation in energy-saving building environments. It also features long-term maintenance-free operation, eliminating the need for regular cleaning or replacement of the heat transfer medium, significantly reducing user maintenance costs and burden. Example 3. The solar thermal core chamber is an active insulation product for agricultural greenhouses. It utilizes a nano-silver mixed heat storage agent to achieve highly integrated solar thermal conversion, phase change energy storage, and photovoltaic power technology. This allows it to absorb and store solar energy during the day and release heat as needed at night, without relying on an external power grid, truly achieving "zero energy consumption" operation for greenhouse insulation. Example 4. The cast aluminum electromagnetic circulation pump electric underfloor heating system directly utilizes existing underfloor heating pipes. Simply drain the old liquid → inject a special nano-silver conductive liquid → connect the main unit → complete. It is highly efficient; within 20 minutes of startup, the room temperature reaches above 20℃ (measured in a -5℃ environment), completely solving the pain points of slow heating and insufficient temperature in traditional heating systems. Temperature fluctuation is ≤±0.5℃, eliminating fluctuating temperatures. This invention, through the efficient thermal conductivity, rapid response, and long-term stability of the mixed heat storage agent, combined with the optimized design of the underfloor heating system, achieves energy-saving, rapid heating, uniform heating, and maintenance-free heating effects, possessing good practical value and promising prospects for promotion. The basic principles and main features of this invention have been described above. Those skilled in the art should understand that this invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this invention. Various changes and modifications can be made to this invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A nano-silver mixed heat storage agent, characterized in that, The heat storage agent is a mixed thermally conductive liquid containing nano-silver particles and other metal elements. The nano-silver particles form a three-dimensional thermally conductive network structure in the base liquid, achieving efficient heat transfer.

2. The nano-silver mixed heat storage agent according to claim 1, characterized in that, The hybrid thermal storage agent has high thermal conductivity, with a thermal conductivity coefficient significantly higher than that of water. During heat transfer, the hybrid thermal storage agent achieves low thermal resistance thermal diffusion through the synergistic effect of phonon vibration and Brownian motion.

3. The nano-silver mixed heat storage agent according to claim 1, characterized in that, The mixed heat storage agent inhibits oxidation and corrosion reactions through the action of nano-silver ions, thereby extending its service life.

4. The application of the nano-silver mixed heat storage agent as described in claim 1 in a floor heating system, characterized in that, The underfloor heating system includes pipes filled with the aforementioned nano-silver mixed heat storage agent as a heat-conducting medium.

5. The application of the nano-silver mixed heat storage agent according to claim 4 in a floor heating system, comprising:

1. Oily base fluid: 85% - 98.5%; 2. Main thermal filler: nano-silver particles, 1% - 10%; 3. Auxiliary thermally conductive filler: other metal or metal oxide nanoparticles, 0.5% - 5%; 4. Composite surface modifier: 0.5% - 4%; 5. High-performance dispersant: 0.1% - 1%.

6. The application of the nano-silver mixed heat storage agent according to claim 4 in a floor heating system, wherein the mixed heat storage agent is prepared by: mixing 3g of nano-silver and 2g of nano-alumina according to a ratio; dissolving 1g of composite surface modifier in 50mL of ethanol, mixing with the mixed filler under stirring, reacting at 70°C for 3 hours, centrifuging, washing, and drying to obtain an oleophilic composite powder; mixing 0.5g of dispersant with 300g of phenyl silicone oil, adding the above 5g of oleophilic composite powder, and grinding three times with a three-roll mill to obtain a paste-like concentrate; mixing the remaining 645g of phenyl silicone oil with the paste-like concentrate at 60°C for 1.5 hours, and then homogenizing under high pressure at 150 MPa for 6 cycles. The obtained product has a thermal conductivity of 1.8 W / m·K and a volume resistivity of 5.6×10^13 Ω·cm.

7. The application of the nano-silver mixed heat storage agent according to claim 4 in a floor heating system, characterized in that, The underfloor heating system releases heat into the room through a combination of radiation and convection. It has low power density operation characteristics, making it suitable for energy-saving building environments. The system is maintenance-free for a long period of time, requiring no regular cleaning or replacement of the heat transfer medium.