Building energy-saving colorful coating and spraying device

Abstract

The invention discloses a building energy-saving colorful coating and a spraying device, the building energy-saving colorful coating comprises a color-changing pigment system, thermal decoloration type reversible thermochromic pigments with different colors are mixed according to different proportions for color matching so as to obtain a color-mixed and colorless color-changing effect, the color-changing pigment system is in a colored state at low temperature, the color-changing pigment system becomes colorless when the temperature rises to a set value, and the color-changing pigment system is in a color-changing state when the temperature rises to a set value; when the temperature is reduced, the original color is recovered; and the base material is used for uniformly developing color and firmly adhering to the surface of a building. According to the invention, a special formula and process are adopted, and various reversible thermochromic pigments are used for complex color blending, so that the coating can reduce the saturation and improve the reflection effect through the heat discoloration property of the reversible thermochromic pigments while ensuring the decoration, and has an excellent energy-saving effect; and meanwhile, the outer wall of the building can form a gradual change effect and form different color effects at different environment temperatures, and the overall attractiveness of the building is further improved.

Description

Technical Field

[0001] A building energy-saving colorful paint is characterized by comprising: a color-changing pigment system, in which different colors of thermochromic reversible thermochromic pigments are mixed in different proportions to obtain a mixed color and colorless color-changing effect. The paint is colored at low temperatures, becomes colorless when the temperature rises to a set value, and restores its original color when the temperature drops.

[0002] A base material, used for evenly developing color and firmly adhering to the surface of the building, the base material having strong adhesion, good temperature resistance, light color and no chemical reaction with the pigment; A solvent is used to adjust the viscosity of the thermochromic paint to facilitate construction and ensure that the paint is evenly applied to the building surface. The solvent has good base material solubility, safety, and a suitable volatilization rate; The filler is used for enhancing color, preventing pigment precipitation and reducing cost. The filler is a light-colored powder with strong temperature resistance. Background Art

[0003] With rising environmental awareness, building energy conservation has become a key development direction for the construction industry. Statistics show that building energy consumption accounts for approximately 30% to 40% of total energy consumption, with heat loss through building envelope structures (such as walls, roofs, doors, and windows) accounting for a significant portion. Therefore, the development of efficient, environmentally friendly building energy-saving materials and their construction equipment is of great significance.

[0004] Traditional architectural coatings primarily focus on decorative and protective properties, but fall short in terms of energy conservation. With advances in science and technology, attention has been focused on the energy-saving properties of coatings, such as thermal insulation, heat insulation, and solar radiation reflection. These properties significantly reduce building energy consumption and improve the indoor environment. In recent years, energy-saving architectural coatings have developed rapidly. Through specialized formulations and processes, these coatings achieve excellent energy-saving benefits while maintaining decorative and protective properties. For example, reflective thermal insulation coatings reflect solar radiation, reducing heat absorption in buildings; barrier thermal insulation coatings achieve thermal insulation by preventing heat transfer through coatings with low thermal conductivity. However, existing reflective and barrier thermal insulation coatings are not conducive to indoor heat dissipation and cooling when the indoor temperature of a building is higher than the outdoor ambient temperature. Furthermore, when the indoor temperature is lower, these thermal insulation coatings also inhibit indoor heat absorption and temperature rise, resulting in numerous drawbacks.

[0005] In view of this, research and improvement are carried out on the existing problems, and a building energy-saving colorful paint and spraying device are provided to solve the current problems. The purpose is to achieve the purpose of solving problems and improving practical value through this technology. Summary of the Invention

[0006] The present invention aims to solve one of the technical problems existing in the prior art or related technologies.

[0007] To this end, the technical solution adopted by the present invention is: a building energy-saving colorful paint, comprising: Color-changing pigment system: different colors of thermochromic reversible thermochromic pigments are mixed in different proportions to achieve mixed color and colorless color-changing effects. They appear colored at low temperatures, turn colorless when the temperature rises to the set value, and return to their original color when the temperature drops. A base material, used for evenly developing color and firmly adhering to the surface of the building, the base material having strong adhesion, good temperature resistance, light color and no chemical reaction with the pigment; A solvent is used to adjust the viscosity of the thermochromic paint to facilitate construction and ensure that the paint is evenly applied to the building surface. The solvent has good base material solubility, safety, and a suitable volatilization rate; The filler is used for enhancing color, preventing pigment precipitation and reducing cost. The filler is a light-colored powder with strong temperature resistance.

[0008] In a preferred example, the present invention can be further configured as follows: the color change response time of the color-changing pigment system is less than 5 minutes, and the color change range includes but is not limited to red, blue, green and yellow.

[0009] In a preferred example, the present invention can be further configured as follows: the thermochromic reversible thermochromic pigment includes an organic dye, a liquid crystal material or a copolymer material, and is encapsulated by microcapsule technology.

[0010] In a preferred example, the present invention can be further configured as follows: the color change temperature of the thermochromic reversible thermochromic pigment is in the range of 10°C to 50°C.

[0011] In a preferred example, the present invention can be further configured as follows: the color-changing pigment system is obtained by mixing different colors of thermochromic reversible thermochromic pigments in different proportions to obtain mixed color and colorless color-changing effects.

[0012] A building energy-saving and colorful paint spraying device comprises: a spray gun body, a mixing tube and a mixing assembly fixed on the inner side of the mixing tube, one end of the spray gun body is fixedly installed with an atomizing nozzle, the surface of the spray gun body is provided with an air valve and a connecting passage is provided between one end of the air valve and the atomizing nozzle, the surface of the air valve is provided with an air inlet end pipe for receiving a high-pressure airflow, the surface of the spray gun body is provided with a control trigger for controlling the opening and closing of the air valve, the bottom end of the spray gun body is fixedly connected to the mixing tube, and the top end of the mixing tube is connected to the output end of the air valve and the connecting passage of the atomizing nozzle; the mixing tube comprises a collecting pipe and a centrifugal mixing chamber and a plurality of swirl guide pipes for connecting between the collecting pipe and the centrifugal mixing chamber, the swirl guide pipes are spiral and evenly distributed in the circumferential direction, the surface of the swirl guide pipes is provided with a manifold and a booster pipe, and adjacent swirl guide pipes are axially connected through two mixing tubes, and the two ends of the two mixing tubes are respectively connected to the manifolds on the surfaces of the two adjacent swirl guide pipes.

[0013] In a preferred example, the present invention can be further configured as follows: the manifold and the booster pipe are in an arc-shaped L-shape, and the manifold and the booster pipe are arranged along the rotation direction of the vortex guide pipe, and the length of the booster pipe is greater than the length of the manifold.

[0014] In a preferred example, the present invention can be further configured as follows: a guide plate is provided on the inner side of the collecting pipe, the mixing assembly includes a shaft seat and a turbine rotatably mounted on the inner side of the shaft seat, and the shaft seat is fixed to the surface of the guide plate.

[0015] The beneficial effects achieved by the present invention are: 1. In the present invention, a special formula and process are adopted to use a variety of reversible thermochromic pigments to carry out complex color mixing, so that the coating can reduce the saturation and improve the reflective effect through the property of reversible thermochromic pigments changing color when heated while ensuring decorative properties, thereby having excellent energy-saving effects.

[0016] 2. In the present invention, by adding colorful elements, the reversible thermochromic pigment can gradually change color or fade during the heating process, so that the exterior wall of the building forms a gradient effect and different color effects under different ambient temperatures, which further enhances the overall aesthetics of the building.

[0017] 3. In the present invention, a new type of building energy-saving colorful paint introduction structure is set up, and a swirl flow of multi-color paint is introduced by a mixing pipe. The swirl turbine is pushed to passively rotate at the mixing component to perform preliminary mixing of the paint, and secondary swirl flow is guided by the swirl of multiple swirl guide pipes and the second mixing pipe to improve the mixing effect of the colorful paint. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the configuration principle of a colorful paint according to an embodiment of the present invention; Figure 2This is a schematic diagram of the overall structure of a spraying device according to an embodiment of the present invention; Figure 3 This is a schematic structural diagram of a mixing tube and a mixing assembly according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the exploded structure of a mixing tube and a mixing assembly according to one embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of a mixing tube according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the connection structure of two mixing tubes according to an embodiment of the present invention;.

[0019] Reference numerals: 100, spray gun body; 110, air valve; 120, control trigger; 130, atomizing nozzle; 111, air inlet end pipe; 200, mixing pipe; 210, collecting pipe; 220, centrifugal mixing chamber; 230, swirl guide pipe; 240, secondary mixing pipe; 211, guide septum; 231, manifold; 232, booster pipe; 300, mixing assembly; 310, shaft seat; 320, turbine wheel. DETAILED DESCRIPTION

[0020] To make the purpose, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be noted that the embodiments of the present invention and the features therein can be combined with each other without conflict.

[0021] It is to be understood that these descriptions are illustrative only and are not intended to limit the scope of the invention.

[0022] The following describes an energy-saving building colorful paint and a spraying device provided by some embodiments of the present invention in conjunction with the accompanying drawings.

[0023] Combine Figure 1 As shown, the working principle of the present invention is to use thermochromic pigments that can be decolorized at high temperatures to mix complex colors. The first part is an ordinary reversible thermochromic pigment that is colored at low temperatures and colorless at high temperatures; the second part is a thermochromic reversible thermochromic pigment that is mixed to form purple at low temperatures and colorless at high temperatures; the third part is a mixture of thermochromic reversible thermochromic pigments and ordinary pigments, which displays the low-concentration state color of the original color of the ordinary pigment at high temperatures. Example 1:

[0024] The present invention provides an energy-saving and colorful building paint, which achieves a mixed color effect at low temperatures and a colorless effect at high temperatures by mixing thermochromic reversible thermochromic pigments of different colors in a specific proportion.

[0025] Material composition: Red thermochromic reversible thermochromic pigment: 40%, red at low temperatures (<20°C) and colorless at high temperatures (≥20°C); Blue thermochromic reversible thermochromic pigment: 40%, blue at low temperature (<20°C) and colorless at high temperature (≥20°C); Yellow thermochromic reversible thermochromic pigment: 20%, yellow at low temperature (<20°C) and colorless at high temperature (≥20°C); Base material: acrylic resin, to ensure uniform color development and firm adhesion of the pigment to the building surface Solvent: ethanol, to adjust the viscosity of the paint and facilitate construction Filler: Titanium dioxide, improves the weather resistance and durability of the coating Preparation method: The red, blue and yellow thermochromic reversible thermochromic pigments are weighed respectively according to proportion.

[0026] Combine the base material and solvent and stir until well combined.

[0027] Gradually add the color-changing pigment to the base solution, stirring continuously to ensure that the pigment is evenly dispersed.

[0028] Finally add the filling and continue mixing until smooth.

[0029] Application and Effect: The paint is evenly applied on the surface of the building's exterior wall.

[0030] At low temperatures (<20°C), the paint appears purple (a mixture of red and blue) and has a beautiful appearance.

[0031] At high temperatures (≥20°C), the color-changing pigment turns colorless and the coating as a whole appears colorless, reducing heat absorption and improving thermal insulation effects. Example 2:

[0032] Temperature-changing color system for building roof coatings This embodiment describes a temperature-changing paint system for building roofs. By mixing different colors of thermochromic reversible thermochromic pigments in a specific proportion and utilizing the principle of three primary colors, a color mixing effect at low temperatures and a low-absorption light-toned effect at high temperatures are achieved.

[0033] Material composition: Cyan thermochromic reversible thermochromic pigment: 33%; green at low temperatures (<20°C) and cyan at high temperatures (≥20°C); Magenta thermochromic reversible thermochromic pigment: 33%; red at low temperatures (<20°C) and magenta at high temperatures (≥20°C); Orange thermochromic reversible thermochromic pigment: 34%; yellow at low temperatures (<20°C) and orange at high temperatures (≥20°C); Base material: silicone resin, to ensure uniform color development and firm adhesion of the pigment to the building surface Solvent: Acetone, adjust the viscosity of the paint to facilitate construction Filler: Alumina, increases the wear resistance and stability of the coating Preparation method: The cyan, magenta and orange thermochromic reversible thermochromic pigments are weighed respectively according to proportion.

[0034] Combine the base material and solvent and stir until well combined.

[0035] Gradually add the color-changing pigment to the base solution, stirring continuously to ensure that the pigment is evenly dispersed.

[0036] Finally add the filling and continue mixing until smooth.

[0037] Application and Effect: The paint is evenly applied on the surface of the building roof.

[0038] At low temperatures (<20°C), the paint appears dark grey (a mixture of green, red and yellow).

[0039] At high temperatures (≥20°C), the thermochromic reversible thermochromic pigments turn into cyan, magenta and yellow, and appear lighter gray after mixing. The overall coating appears light gray, thereby reducing solar radiation absorption and improving the thermal insulation performance of the roof.

[0040] Through the above two embodiments, the dynamic color change effect of the temperature-chromic paint system at different temperatures can be achieved, thereby improving the aesthetic appearance and thermal performance of the building.

[0041] Combine Figure 2-Figure 6As shown, the present invention provides a building energy-saving colorful paint spraying device, including a spray gun body 100, a mixing tube 200 and a mixing assembly 300 fixed to the inner side of the mixing tube 200, one end of the spray gun body 100 is fixedly installed with an atomizing nozzle 130, the surface of the spray gun body 100 is provided with an air valve 110 and a connecting passage is provided between one end of the air valve 110 and the atomizing nozzle 130, the surface of the air valve 110 is provided with an air inlet end pipe 111 for receiving a high-pressure air flow, the surface of the spray gun body 100 is provided with a control trigger 120 for controlling the opening and closing of the air valve 110, the bottom end of the spray gun body 100 is fixedly connected with a mixing nozzle 130, The mixing pipe 200 is connected to the connection passage of the output end of the air valve 110 and the atomizing nozzle 130; the mixing pipe 200 includes a collecting pipe 210 and a centrifugal mixing chamber 220 and a plurality of swirl guide pipes 230 for connecting the collecting pipe 210 and the centrifugal mixing chamber 220. The swirl guide pipes 230 are spiral and evenly distributed in the circumferential direction. A manifold 231 and a booster pipe 232 are provided on the surface of the swirl guide pipe 230, and adjacent swirl guide pipes 230 are axially connected through two mixing pipes 240. The two ends of the two mixing pipes 240 are respectively connected to the manifolds 231 on the surfaces of the two adjacent swirl guide pipes 230.

[0042] In this embodiment, the manifold 231 and the booster pipe 232 are L-shaped and arranged along the rotation direction of the swirl guide pipe 230 . The length of the booster pipe 232 is greater than that of the manifold 231 .

[0043] Specifically, a Tesla valve structure is formed on the surface of the swirl guide tube 230 by the manifold 231 and the booster tube 232 to accelerate the flow of the solution inside the swirl guide tube 230 and reduce the kinetic energy loss of the solution at the second mixing tube 240 .

[0044] In this embodiment, a guide plate 211 is provided on the inner side of the collecting pipe 210 , and the mixing assembly 300 includes a shaft seat 310 and a turbine wheel 320 rotatably mounted on the inner side of the shaft seat 310 . The shaft seat 310 is fixed to the surface of the guide plate 211 .

[0045] Specifically, the solution movement inside the manifold 210 drives the vortex wheel 320 to passively rotate, and the vortex wheel 320 rotates to perform preliminary mixing of the coating.

[0046] The working principle and use process of the present invention: During the construction spraying work, the three-color thermochromic reversible thermochromic pigment is added to the solvent according to the suitable ratio and mixed separately to form three three-color pigment solutions with different concentrations and the same solution volume. The storage tank is connected to the centrifugal pump and connected to the bottom end of the collecting pipe 210. During the pumping, the three-color solution is passed into the interior of the mixing pipe 200 at high pressure. The vortex turbine 320 is passively rotated by the movement of the solution inside the collecting pipe 210. The rotation of the vortex turbine 320 performs preliminary mixing of the paint. The air flow movement between the air valve 110 and the mixing component 300 forms a negative pressure suction effect, which cooperates with the solution in the pumping action to make the mixed solution move through the vortex guide pipe 230. The swirl centrifugal effect of the solution formed under the action of the swirl allows it to axially enter the second mixing tube 240, and is introduced into the other swirl guide tube 230 through the second mixing tube 240 for mixing. Under the guidance of the booster tube 232, it is re-mixed into the swirl guide tube 230 to form a boosting effect on the solution, providing a secondary boost to the solution discharged from the second mixing tube 240, thereby improving the solution movement effect; after the solution is discharged from the swirl guide tube 230, a centrifugal swirl effect is formed in the centrifugal mixing chamber 220, for a second mixing effect, further improving the mixing effect of the three-color solution; at the same time, the three-color solution is mixed and sprayed during the spraying process through the propulsion of the airflow, thereby improving work efficiency.

[0047] Throughout this specification, terms such as "one embodiment," "some embodiments," and "specific embodiments" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, illustrative uses of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0048] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. A building energy-saving colorful paint, characterized in that: include: Color-changing pigment system: different colors of thermochromic reversible thermochromic pigments are mixed in different proportions to achieve mixed color and colorless color-changing effects. They appear colored at low temperatures, turn colorless when the temperature rises to the set value, and return to their original color when the temperature drops. A base material, used for evenly developing color and firmly adhering to the surface of the building, the base material having strong adhesion, good temperature resistance, light color and no chemical reaction with the pigment; A solvent is used to adjust the viscosity of the thermochromic paint to facilitate construction and ensure that the paint is evenly applied to the building surface. The solvent has good base material solubility, safety, and a suitable volatilization rate; The filler is used for enhancing color, preventing pigment precipitation and reducing cost. The filler is a light-colored powder with strong temperature resistance.

2. The energy-saving colorful building paint according to claim 1, characterized in that: The color change response time of the color-changing pigment system is less than 5 minutes, and the color change range includes but is not limited to red, blue, green and yellow.

3. The energy-saving colorful building paint according to claim 1, characterized in that: The thermochromic reversible thermochromic pigment comprises an organic dye, a liquid crystal material or a copolymer material, and is coated by microcapsule technology.

4. The energy-saving colorful building paint according to claim 1, characterized in that: The color change temperature of the thermochromic reversible thermochromic pigment is in the range of 10°C to 50°C.

5. The energy-saving colorful building paint according to claim 1, characterized in that: The color-changing pigment system is achieved by mixing different colors of thermochromic reversible thermochromic pigments in different proportions to obtain mixed color and colorless color-changing effects.

6. A building energy-saving colorful paint spraying device, characterized in that: The invention comprises a spray gun body (100), a mixing tube (200) and a mixing assembly (300) fixed to the inner side of the mixing tube (200), wherein one end of the spray gun body (100) is fixedly mounted with an atomizing nozzle (130), an air valve (110) is provided on the surface of the spray gun body (100), and a connecting passage is provided between one end of the air valve (110) and the atomizing nozzle (130), an air inlet end pipe (111) for receiving a high-pressure air flow is provided on the surface of the air valve (110), a control trigger (120) for controlling the opening and closing of the air valve (110) is provided on the surface of the spray gun body (100), the bottom end of the spray gun body (100) is fixedly connected with the mixing tube (200), and the mixing tube (200) is fixedly mounted on the bottom end of the spray gun body (1 ... ) is connected to the output end of the air valve (110) and the connection passage of the atomizing nozzle (130); the mixing pipe (200) includes a collecting pipe (210) and a centrifugal mixing chamber (220) and a plurality of swirl guide pipes (230) for connecting the collecting pipe (210) and the centrifugal mixing chamber (220), the swirl guide pipes (230) are spiral and evenly distributed in the circumferential direction, a manifold (231) and a booster pipe (232) are provided on the surface of the swirl guide pipe (230), and adjacent swirl guide pipes (230) are axially connected through two mixing pipes (240), and the two ends of the two mixing pipes (240) are respectively connected to the manifolds (231) on the surfaces of the two adjacent swirl guide pipes (230).

7. The building energy-saving colorful paint spraying device according to claim 6, characterized in that: The manifold (231) and the booster tube (232) are in an arc-shaped L-shape, and the manifold (231) and the booster tube (232) are arranged along the rotation direction of the swirl guide tube (230), and the length of the booster tube (232) is greater than the length of the manifold (231).

8. The building energy-saving colorful paint spraying device according to claim 6, characterized in that: A guide septum (211) is provided on the inner side of the collecting pipe (210), and the mixing assembly (300) comprises a shaft seat (310) and a turbine (320) rotatably mounted on the inner side of the shaft seat (310), wherein the shaft seat (310) is fixed to the surface of the guide septum (211).

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