CN217228672U - Coating thermal protection structure and coating heat preservation device - Google Patents

Abstract

The application belongs to the technical field of coating heat preservation, especially, relate to a coating heat protection structure and coating heat preservation device, and coating heat protection structure includes base member, anticorrosive heat-insulating layer and low emittance coating, and anticorrosive heat-insulating layer covers in the surface of base member to be connected with the base member, low emittance coating covers in anticorrosive heat-insulating layer surface to the base member dorsad, and is connected with anticorrosive heat-insulating layer. The surface of the substrate is coated with the anti-corrosion heat-insulation layer, and then the surface of the anti-corrosion heat-insulation layer is coated with the low-emissivity coating, wherein the anti-corrosion heat-insulation layer can prevent the substrate from being corroded, the low-emissivity coating has low heat conductivity and can effectively delay the outward conduction of heat in the substrate, and the low-emissivity coating has low emissivity and can effectively reduce the surface heat radiation, so that the dual heat preservation effect can be realized, the loss of heat in the substrate is greatly reduced, and the heat preservation and heat insulation effect is enhanced.

Description

Coating thermal protection structure and coating heat preservation device

Technical Field

The application belongs to the technical field of coating heat preservation, especially, relates to a coating heat protection structure and coating heat preservation device.

Background

In recent years, with the development of world science and technology and social productivity, environmental protection and energy conservation and consumption reduction have become common consensus of human beings. The pipeline corrosion-resistant heat-insulating engineering has wide application in the fields of petrochemical industry, metallurgy, electric power and other industries. Nowadays, the melody mainly comprising green low carbon and energy-saving and environment-friendly properties is adopted, and effective anti-corrosion heat preservation measures are adopted to reduce the heat loss of coating heat preservation devices such as pipelines and heat preservation boxes, so that the energy consumption is saved, and the method has wide social and economic benefits undoubtedly. Besides the qualified anticorrosion and thermal insulation materials, construction technology and construction quality, the good coating thermal protection structure plays a very important role in the overall thermal insulation effect of the protected object.

The main structural form of the coating thermal protection structure adopted by the domestic pipeline corrosion prevention and heat preservation engineering is as follows: the heat preservation principle of the steel pipe, the anticorrosive layer, the heat preservation layer and the protective layer is realized through low heat conductivity, the heat preservation layer with the low heat conductivity can delay heat conduction outwards, but in the actual use process, the coating heat protection structure has the problem of serious surface heat radiation, serious heat loss is caused, and the heat preservation effect is poor.

SUMMERY OF THE UTILITY MODEL

An object of the application is to provide a coating thermal protection structure and coating heat preservation device, aim at solving among the prior art anticorrosive heat preservation engineering calorific loss serious, the relatively poor technical problem of heat preservation effect.

In order to achieve the purpose, the technical scheme adopted by the application is as follows: a coating thermal protection structure comprises a base body, an anti-corrosion thermal insulation layer and a low-emissivity coating, wherein the anti-corrosion thermal insulation layer covers the surface of the base body and is connected with the base body, and the low-emissivity coating covers the surface, opposite to the base body, of the anti-corrosion thermal insulation layer and is connected with the anti-corrosion thermal insulation layer.

Further, the low emissivity coating is a metallic paint coating.

Further, the metal paint coating is prepared by coating the surface of the anti-corrosion heat-insulation layer, which faces away from the substrate, with a paint prepared from metal powder with low emissivity.

Further, the metal paint coating is an aluminum powder coating layer.

Further, the aluminum powder coating layer is prepared by coating aluminum paste on the surface of the anti-corrosion heat-insulation layer opposite to the substrate.

Further, the anti-corrosion heat-insulation layer is of a single-layer or double-layer structure.

Further, the anticorrosion and thermal insulation layer is an epoxy thermal insulation coating layer.

Further, the thickness of the epoxy heat-insulating coating layer is greater than or equal to 1 millimeter.

One or more technical solutions in the paint thermal protection structure provided by the present application have at least one of the following technical effects: the surface of the substrate is coated with the anti-corrosion heat-insulation layer, and then the surface of the anti-corrosion heat-insulation layer is coated with the low-emissivity coating, wherein the anti-corrosion heat-insulation layer can prevent the substrate from being corroded, the low-emissivity coating has low heat conductivity and can effectively delay the outward conduction of heat in the substrate, and the low-emissivity coating has low emissivity and can effectively reduce the surface heat radiation, so that the dual heat preservation effect can be realized, the loss of heat in the substrate is greatly reduced, and the heat preservation and heat insulation effect is improved.

In order to achieve the purpose, the technical scheme adopted by the application also provides a coating heat preservation device which comprises the coating heat protection structure.

Further, the coating heat preservation device is a pipeline, a heat preservation box, a vacuum flask, a heat preservation pot, a heat preservation box, a heat preservation barrel, a heat preservation furnace or a heat preservation oven.

One or more technical schemes in the coating heat preservation device provided by the application have at least one of the following technical effects: the surface of the coating heat preservation device is coated with an anticorrosive heat insulation layer, and then the surface of the anticorrosive heat insulation layer departing from the coating heat preservation device is coated with a low-emissivity coating, wherein the anticorrosive heat insulation layer can prevent the coating heat preservation device from being corroded, and can effectively delay the outward conduction of heat in the coating heat preservation device due to the low heat conductivity coefficient, and the low-emissivity coating can effectively reduce the outward radiation of heat in a thermal radiation mode due to the low emissivity coating, so that the dual heat preservation effect can be realized, the heat loss in the coating heat preservation device is greatly reduced, and the heat preservation and heat insulation effect is improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of a coating thermal protection structure provided in an embodiment of the present application.

Wherein, in the figures, the various reference numbers:

1. a base;

2. an anticorrosion and thermal insulation layer;

3. a low emissive coating.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative and intended to explain the present application and should not be construed as limiting the present application.

In the description of the present application, it is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings, which is for convenience and simplicity of description, and does not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, is not to be considered as limiting.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In the related art, the traditional insulation structure applied to the pipeline usually comprises an anticorrosive layer and an insulation layer, wherein the insulation layer is usually an organic insulation material with low thermal conductivity, such as polyurethanes, rubbers, polyethylenes, etc., the insulation material with low thermal conductivity has poor thermal conductivity, and can delay the outward transfer of heat, thereby realizing the thermal insulation effect on the pipeline. However, organic heat-insulating materials often have relatively high emissivity while having low thermal conductivity, and coatings made of heat-insulating materials having high emissivity have a problem of serious outward radiation of surface heat, thereby weakening the heat-insulating effect, causing serious heat loss and poor heat-insulating effect.

In order to solve the above technical problem, an embodiment of the present application provides a paint thermal protection structure, as shown in fig. 1, the paint thermal protection structure includes a base 1, an anticorrosion and thermal insulation layer 2 and a low-emissivity coating layer 3, the anticorrosion and thermal insulation layer 2 covers a surface of the base 1 and is connected with the base 1, and the low-emissivity coating layer 3 covers a surface of the anticorrosion and thermal insulation layer 2, which is opposite to the base 1, and is connected with the anticorrosion and thermal insulation layer 2.

In this application embodiment, at first anticorrosive insulating layer 2 of surface coating of base member 1, then the surface coating that deviates from base member 1 at anticorrosive insulating layer 2 hangs down emittance coating 3, wherein, anticorrosive insulating layer 2 not only can prevent that base member 1 from corroding, and owing to have lower heat conductivility, can delay the outside conduction of heat in the base member 1 effectively, and low emittance coating 3 is owing to have lower emittance, can reduce the surface heat radiation effectively, thus, just can realize dual heat preservation effect, the thermal loss in the base member 1 of significantly reducing, reinforcing heat preservation thermal-insulated effect. The hot protective structure of coating that this application embodiment provided has combined anticorrosive, low thermal conductivity and the three characteristic of low emittance, has compensatied among the traditional art because the insulating material emittance is high and weaken the not enough of heat preservation effect, reduces thermal loss in the base member 1 from two aspects of low thermal conductivity and low emittance, compares with prior art, and the hot protective structure of coating that this application embodiment provided has improved the thermal-insulated effect that keeps warm greatly.

The anticorrosive and heat-insulating layer 2 and the low-emissivity coating 3 can be arranged on the outer surface of the substrate 1, and can also be arranged on the outer surface and the inner surface of the substrate 1 at the same time. For example, when the anticorrosion and thermal insulation layer 2 and the low-emissivity coating layer 3 are disposed on the outer surface of the substrate 1, the inner surface of the substrate 1 may be provided with an anticorrosion layer or a primer layer, and the surface of the low-emissivity coating layer 3 facing away from the anticorrosion and thermal insulation layer 2 may be provided with a protective layer.

In another embodiment of the present application, the low emissivity coating 3 is a metallic paint coating. Metallic species are generally less emissive and less capable of heat radiation than non-metallic species, particularly organic species. The metal paint coating mainly comprises low-emissivity metal substances, so that the surface heat radiation can be effectively reduced, and the heat preservation and insulation effects are enhanced. The metallic paint coating may comprise a single metal, or may comprise two or more metals; the metallic paint coating may be a mixture of a non-metallic species and a metallic species.

In another embodiment of the present application, the metallic paint coating is prepared by coating the surface of the corrosion and heat insulating layer 2 opposite to the substrate 1 with a paint prepared from a metallic powder with low emissivity. Specifically, the metal paint coating further comprises a film forming material, the film forming material plays a role in forming a film by coating, metal powder with low emissivity is compounded on the surface layer of the film forming material to form a complete coating, the metal paint coating manufactured by the method can effectively reduce surface heat radiation and enhance the heat preservation and insulation effects, and the metal paint coating further has the advantages of being stable in structure, simple to manufacture, low in cost and the like. Preferably, the metal powder is aluminum powder, the aluminum powder is low in cost and low in emission, and an aluminum powder coating layer prepared by coating the aluminum powder coating on the surface of the anti-corrosion heat-insulation layer 2 opposite to the substrate 1 has low emission and good heat-insulation effect. In other embodiments, the metal powder may be silver powder, nickel powder, copper powder, or the like.

In another embodiment of the present application, the aluminum powder coating layer is prepared by coating a coating made of aluminum silver paste on the surface of the corrosion-resistant and heat-insulating layer 2 opposite to the substrate 1. The aluminum paste mainly comprises flake aluminum powder, an organic solvent and a non-organic solvent, and has the advantages of low emissivity, good light and heat reflection performance, light weight, strong covering power, strong adhesive force and the like.

In another embodiment of the application, the thickness of the corrosion and thermal insulating barrier layer 2 is greater than the thickness of the low emissivity coating 3. Through the thickness of increase anticorrosive insulating layer 2, can strengthen the ability of restraining heat conduction, reach better heat preservation effect, simultaneously, thick anticorrosive insulating layer 2 can protect base member 1 better, prevents that base member 1 from being corroded. While the low emissivity coating 3, such as a metallic paint film, is generally exposed to heat radiation regardless of thickness, the thickness can be reduced to save cost. Specifically, the corrosion-resistant and heat-insulating layer 2 can be thickly coated for more than 1 mm at one time without cracking, and the integrity of the physical and chemical properties of the coating is maintained. Different construction thicknesses can be selected according to actual requirements, repeated construction is carried out, and the thickness required by the anti-corrosion heat-insulation layer 2 is achieved.

In another embodiment of the present application, the corrosion and thermal insulation layer 2 has a single-layer structure. The anticorrosion and thermal insulation layer 2 is of a single-layer structure, and compared with a multi-layer insulation anticorrosion structure (an anticorrosion layer, a thermal insulation layer and a protective layer), the anticorrosion and thermal insulation anticorrosion layer can be coated to form a film at one time, construction is simple, construction cost is low, in addition, different construction thicknesses can be selected according to requirements, and applicability is wide.

In another embodiment of the present application, the anticorrosion and thermal insulation layer 2 is a double-layer structure, the anticorrosion and thermal insulation layer 2 includes a body layer and a primer layer, the primer layer covers the surface of the substrate 1, and the body layer covers the surface of the primer layer opposite to the substrate 1. The body layer can prevent the corrosion of the base body 1, and can effectively delay the outward conduction of heat in the base body 1 due to the lower heat-conducting property, and the primer layer is used for enhancing the adhesive force of the body layer on the base body 1. The primer layer is coated on the surface of the substrate 1, and then the body layer is coated on the surface of the primer layer, so that the adhesion of the body layer on the substrate 1 can be enhanced.

In another embodiment of the present application, the corrosion and heat insulation layer 2 is an epoxy heat insulation coating layer. Specifically, the anticorrosion and thermal insulation layer 2 is prepared by mixing an epoxy base material, a functional filler and an auxiliary agent and then covering the mixture on the surface of the matrix 1. Furthermore, the epoxy base material comprises epoxy resin, and the epoxy resin is an organic macromolecular compound containing more than two epoxy groups in the molecule, and has the advantages of good adhesive property, corrosion resistance, heat resistance, low curing shrinkage, good processing property and the like. Furthermore, the waterborne epoxy resin is selected, has strong adaptability and extremely high adhesive force to a plurality of substrates, and the cured coating has low heat conductivity coefficient and excellent corrosion resistance, and has the advantages of small coating shrinkage, high hardness, good wear resistance, good electrical insulation, good construction operability and the like. Because the coating prepared by adopting the epoxy base material has good adhesive force performance, the anti-corrosion thermal insulation layer 2 can be of a single-layer structure and is directly coated on the surface of the matrix 1. In order to enhance the adhesive force, the anticorrosion and thermal insulation layer 2 may also be a double-layer structure including a body layer and a primer layer, the primer layer covers the surface of the substrate 1, and the body layer covers the surface of the primer layer opposite to the substrate 1. The body layer can prevent the base body 1 from being corroded, heat in the base body 1 can be effectively delayed from being conducted outwards due to the low heat conduction performance, and the primer layer is used for enhancing the adhesive force of the body layer on the base body 1. The primer layer is coated on the surface of the substrate 1, and then the body layer is coated on the surface of the primer layer, so that the adhesion of the body layer on the substrate 1 can be enhanced. Preferably, the primer layer is an epoxy primer.

In another embodiment of the present application, the thickness of the epoxy insulating coating layer is greater than or equal to 1 millimeter. The epoxy heat-insulating coating layer provided by the embodiment of the application can be thick coated for one time by more than 1 millimeter without cracking, keeps the integrity of the physical and chemical properties of the coating, and has good heat insulation and corrosion resistance. The thickness of the epoxy heat-insulating coating layer is not specifically limited, different construction thicknesses can be selected according to actual requirements, repeated construction can be carried out, coating can be carried out for multiple times, and the thickness of the epoxy heat-insulating coating layer manufactured by the method can reach 2 mm, 3 mm, 4 mm and even more than 4 mm.

In another embodiment of the present application, the thermal and corrosion protection layer 2 is prepared by coating the surface of the substrate 1 with a mixture of a main agent and a curing agent. Wherein, the main agent comprises the following components in parts by weight: 20-30 parts of water, 0.1-0.5 part of wetting agent, 0.5-1.5 parts of dispersing agent, 0.1-1.0 part of defoaming agent, 2-10 parts of filler, 5-15 parts of aerogel powder, 1-2 parts of anti-settling agent, 40-60 parts of aqueous epoxy emulsion, 0.1-0.5 part of mildew inhibitor, 0.1-0.5 part of preservative, 0.5-1.5 parts of thickening agent and 0.5-1 part of coupling agent; the curing agent comprises the following components in parts by weight: 10-25 parts of glass beads, 40-60 parts of water-based epoxy curing agent, 0.5-2.0 parts of anti-flash rust agent, 20-30 parts of water, 1-4 parts of dispersing agent and 2-6 parts of film-forming assistant. The anti-corrosion and heat-insulation layer 2 prepared by the method has lower heat-conducting property and better heat-insulation effect, can be coated in a thick mode for more than 1 mm at one time without cracking, and keeps the integrity of the physical and chemical properties of the coating.

The embodiment of the application also provides a coating heat preservation device, which comprises the coating heat protection structure provided by the embodiment. In this application embodiment, the heat preservation main part in the coating heat preservation device is base member 1, cover anticorrosive heat insulating layer 2 at the surface coating of heat preservation main part earlier, then at anticorrosive heat insulating layer 2 surface coating low emissivity coating 3, wherein, anticorrosive heat insulating layer 2 not only can prevent coating heat preservation device corruption, and owing to have lower heat conductivility, can delay the outside conduction of heat in the coating heat preservation device effectively, and low emissivity coating 3 is owing to have lower emittance, can reduce surface heat radiation effectively, and like this, just can realize dual heat preservation effect, the thermal loss in the coating heat preservation device that significantly reduces, the thermal-insulated effect of reinforcing heat preservation. The hot protective structure of coating that this application embodiment provided has combined anticorrosive, low thermal conductivity and the three characteristic of low emittance, has compensatied because the insulating material emittance is high and weaken the not enough of heat preservation effect in the traditional art, reduces thermal loss in the coating heat preservation device from two aspects of low thermal conductivity and low emittance, compares with prior art, the hot protective structure of coating that this application embodiment provided has improved the heat preservation effect of coating heat preservation device greatly.

In another embodiment of this application, the coating heat preservation device is the pipeline, the body of pipeline is base member 1, cover anticorrosive insulating layer 2 at the surface coating of body earlier, then at anticorrosive insulating layer 2 surface coating low emissivity coating 3, wherein, anticorrosive insulating layer 2 not only can prevent the body corruption, and owing to have lower heat conductivility, can delay the outside conduction of heat in the body effectively, and low emissivity coating 3 is owing to have lower emittance, can reduce surface heat radiation effectively, and like this, just can realize dual heat preservation effect, the thermal loss in the body is greatly reduced, the thermal-insulated effect of reinforcing heat preservation. The hot protective structure of coating that this application embodiment provided has combined anticorrosive, low thermal conductivity and the three characteristic of low emittance, has compensatied because the insulating material emittance is high and weaken the not enough of heat preservation effect among the traditional art, reduces thermal loss in the pipeline from two aspects of low thermal conductivity and low emittance, compares with prior art, and the hot protective structure of coating that this application embodiment provided has improved the heat preservation effect of pipeline greatly.

In another embodiment of the present application, the coating thermal insulation device is a thermal insulation box, the thermal insulation main body of the thermal insulation box is a substrate 1, the outer wall of the thermal insulation main body of the thermal insulation box is coated with an anticorrosion thermal insulation layer 2, and then the surface of the anticorrosion thermal insulation layer 2 is coated with a low-emissivity coating 3, wherein the anticorrosion thermal insulation layer 2 can prevent the thermal insulation main body of the thermal insulation box from being corroded, and due to the low thermal conductivity, the heat in the thermal insulation main body of the thermal insulation box can be effectively delayed from being conducted outwards, and the low-emissivity coating 3 has the low emissivity, the surface heat radiation can be effectively reduced, so that the dual thermal insulation effect can be realized, the loss of heat in the thermal insulation main body of the thermal insulation box is greatly reduced, and the thermal insulation effect is enhanced. The hot protective structure of coating that this application embodiment provided has combined anticorrosive, low thermal conductivity and the three characteristic of low emittance, has compensatied because the insulating material emittance is high and weaken the not enough of heat preservation effect in the traditional art, reduces thermal loss in the insulation can from two aspects of low thermal conductivity and low emittance, compares with prior art, and the hot protective structure of coating that this application embodiment provided has improved the heat preservation effect of insulation can greatly.

In another embodiment of the application, the coating heat preservation device is a vacuum flask, the heat preservation main part of vacuum flask is base member 1, coat at the outer wall of the heat preservation main part of vacuum flask at first and cover anticorrosive thermal insulation layer 2, then at anticorrosive thermal insulation layer 2's surface coating low emissivity coating 3, wherein, anticorrosive thermal insulation layer 2 not only can prevent the heat preservation main part of vacuum flask from corroding, and owing to have lower heat conductivility, can delay the heat in the heat preservation main part of vacuum flask outwards conduction effectively, and low emissivity coating 3 is owing to have lower emittance, can reduce the surface heat radiation effectively, thus, just can realize dual heat preservation effect, the thermal loss in the heat preservation main part of greatly reduced vacuum flask, reinforcing heat preservation and heat insulation effect. The hot protective structure of coating that this application embodiment provided has combined anticorrosive, low thermal conductivity and low three characteristic of emittance, has compensatied among the conventional art because the insulating material emittance is high and weaken the not enough of heat preservation effect, reduces the loss of heat in the thermos from two aspects of low thermal conductivity and low emittance, compares with prior art, the hot protective structure of coating that this application embodiment provided has improved the heat preservation effect of thermos greatly.

In another embodiment of the present application, the coating thermal insulation device is a thermal insulation kettle, the thermal insulation main body of the thermal insulation kettle is a substrate 1, the outer wall of the thermal insulation main body of the thermal insulation kettle is coated with an anti-corrosion thermal insulation layer 2, and then the surface of the anti-corrosion thermal insulation layer 2 is coated with a low-emissivity coating 3, wherein the anti-corrosion thermal insulation layer 2 can not only prevent the thermal insulation main body of the thermal insulation kettle from corroding, but also can effectively delay the outward conduction of heat in the thermal insulation main body of the thermal insulation kettle due to the low thermal conductivity, and the low-emissivity coating 3 can effectively reduce the surface heat radiation due to the low emissivity coating, so that the dual thermal insulation effect can be realized, the loss of heat in the thermal insulation main body of the thermal insulation kettle is greatly reduced, and the thermal insulation effect is enhanced. The hot protective structure of coating that this application embodiment provided has combined anticorrosive, low thermal conductivity and the three characteristic of low emittance, has compensatied because the insulating material emittance is high and weaken the not enough of heat preservation effect among the traditional art, reduces thermal loss in the thermo jug from two aspects of low thermal conductivity and low emittance, compares with prior art, the hot protective structure of coating that this application embodiment provided has improved the heat preservation effect of thermo jug greatly.

In another embodiment of the present application, the coating thermal insulation device is a thermal insulation box, the thermal insulation main body of the thermal insulation box is a substrate 1, the outer wall of the thermal insulation main body of the thermal insulation box is coated with an anticorrosion thermal insulation layer 2, and then the surface of the anticorrosion thermal insulation layer 2 is coated with a low-emissivity coating 3, wherein the anticorrosion thermal insulation layer 2 can prevent the thermal insulation main body of the thermal insulation box from corroding, and due to the low thermal conductivity, the heat in the thermal insulation main body of the thermal insulation box can be effectively delayed from conducting outwards, and the low-emissivity coating 3 has the low emissivity, the surface heat radiation can be effectively reduced, so that the dual thermal insulation effect can be realized, the loss of heat in the thermal insulation main body of the thermal insulation box can be greatly reduced, and the thermal insulation effect can be enhanced. The hot protective structure of coating that this application embodiment provided has combined anticorrosive, low thermal conductivity and the three characteristic of low emittance, has compensatied among the traditional art because the insulating material emittance is high and weaken the not enough of heat preservation effect, reduces the heat loss in the heat preservation box from two aspects of low thermal conductivity and low emittance, compares with prior art, the hot protective structure of coating that this application embodiment provided has improved the heat preservation effect of heat preservation box greatly.

In another embodiment of this application, the coating heat preservation device is the heat-preserving container, the heat preservation main part of heat-preserving container is base member 1, coat at the outer wall of the heat preservation main part of heat-preserving container earlier and cover anticorrosive insulating layer 2, then at anticorrosive insulating layer 2's surface coating low emissivity coating 3, wherein, anticorrosive insulating layer 2 not only can prevent the heat preservation main part of heat-preserving container to corrode, and owing to have lower heat conductivility, can delay the outside conduction of the heat in the heat preservation main part of heat-preserving container effectively, and low emissivity coating 3 owing to have lower emittance, can reduce surface heat radiation effectively, so, just can realize dual heat preservation effect, the loss of the heat in the heat preservation main part of heat-preserving container that significantly reduces, reinforcing heat preservation and thermal-insulation effect. The hot protective structure of coating that this application embodiment provided has combined anticorrosive, low thermal conductivity and the three characteristic of low emittance, has compensatied because the insulating material emittance is high and weaken the not enough of heat preservation effect among the traditional art, reduces thermal loss in the heat-preserving container from two aspects of low thermal conductivity and low emittance, compares with prior art, and the hot protective structure of coating that this application embodiment provided has improved the heat preservation effect of heat-preserving container greatly.

In another embodiment of the present application, the coating thermal insulation device is a thermal insulation furnace, the thermal insulation main body of the thermal insulation furnace is a substrate 1, the outer wall of the thermal insulation main body of the thermal insulation furnace is coated with an anticorrosion thermal insulation layer 2, and then the surface of the anticorrosion thermal insulation layer 2 is coated with a low-emissivity coating 3, wherein the anticorrosion thermal insulation layer 2 can prevent the thermal insulation main body of the thermal insulation furnace from corroding, and can effectively delay the outward conduction of heat in the thermal insulation main body of the thermal insulation furnace due to the lower thermal conductivity, and the low-emissivity coating 3 can effectively reduce the surface heat radiation due to the lower emissivity, so that the dual thermal insulation effect can be realized, the loss of heat in the thermal insulation main body of the thermal insulation furnace is greatly reduced, and the thermal insulation effect is enhanced. The hot protective structure of coating that this application embodiment provided has combined anticorrosive, low thermal conductivity and the three characteristic of low emittance, has compensatied among the traditional art because the insulating material emittance is high and weaken the not enough of heat preservation effect, reduces the loss of heat in the heat preservation stove from two aspects of low thermal conductivity and low emittance, compares with prior art, the hot protective structure of coating that this application embodiment provided has improved the heat preservation effect of heat preservation stove greatly.

In another embodiment of the present application, the coating thermal insulation device is a thermal insulation oven, the thermal insulation main body of the thermal insulation oven is a substrate 1, the outer wall of the thermal insulation main body of the thermal insulation oven is coated with an anticorrosion thermal insulation layer 2, and then the surface of the anticorrosion thermal insulation layer 2 is coated with a low-emissivity coating 3, wherein the anticorrosion thermal insulation layer 2 can prevent the thermal insulation main body of the thermal insulation oven from being corroded, and the low-emissivity coating 3 has a low thermal conductivity, so that the heat in the thermal insulation main body of the thermal insulation oven can be effectively delayed from being conducted outwards, and the low-emissivity coating 3 has a low emissivity, so that the surface heat radiation can be effectively reduced, thereby realizing dual thermal insulation effects, greatly reducing the loss of heat in the thermal insulation main body of the thermal insulation oven, and enhancing the thermal insulation effect. The hot protective structure of coating that this application embodiment provided has combined anticorrosive, low thermal conductivity and low three characteristic of emittance, has compensatied among the traditional art because insulating material emittance is high and weaken the not enough of heat preservation effect, reduces the heat loss in the heat preservation oven from two aspects of low thermal conductivity and low emittance, compares with prior art, the hot protective structure of coating that this application embodiment provided has improved the heat preservation effect of heat preservation oven greatly.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (10)

1. A paint thermal protection structure characterized by: the method comprises the following steps:

a substrate;

the anticorrosion heat-insulating layer covers the surface of the substrate and is connected with the substrate; and

the low-emissivity coating covers the surface of the anticorrosion heat-insulation layer, which faces away from the substrate, and is connected with the anticorrosion heat-insulation layer.

2. The paint thermal protection structure of claim 1, wherein: the low-emissivity coating is a metallic paint coating.

3. The paint thermal protection structure of claim 2, wherein: the metal paint coating is prepared by adopting metal powder with low emissivity to prepare a coating and then covering the surface of the anti-corrosion heat-insulation layer, which faces away from the substrate.

4. The paint thermal protection structure of claim 2, wherein: the metal paint coating is an aluminum powder coating layer.

5. The paint thermal protection structure of claim 4, wherein: the aluminum powder coating layer is prepared by adopting aluminum paste to prepare a coating and then covering the surface of the anti-corrosion heat-insulation layer, which faces away from the substrate.

6. The coated thermal protection structure of any one of claims 1 to 5, wherein: the anti-corrosion heat-insulation layer is of a single-layer or double-layer structure.

7. The coated thermal protection structure according to any one of claims 1 to 5, wherein: the anticorrosion thermal insulation layer is an epoxy thermal insulation coating layer.

8. The paint thermal protection structure of claim 7, wherein: the thickness of the epoxy heat-insulating coating layer is greater than or equal to 1 mm.

9. A coating heat preservation device which characterized in that: a coated thermal protection structure comprising any one of claims 1 to 8.

10. The paint heat retention device of claim 9, wherein: the coating heat preservation device is a pipeline, a heat preservation box, a vacuum flask, a heat preservation pot, a heat preservation box, a heat preservation barrel, a heat preservation furnace or a heat preservation oven.

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