SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a composite insulation board and thermal storage equipment for solve or the problem that present insulation material can't be applicable to the operating mode more than 500 ℃.
In a first aspect, an embodiment of the present invention provides a composite insulation board, including: the insulation board comprises a nanometer insulation board, a fiber insulation board and an organic silicon rubber layer which are sequentially connected.
On the basis of the technical scheme, the temperature of one side, close to the fiber insulation board, of the nanometer insulation board is less than 500 ℃.
On the basis of the technical scheme, the outer wall of the nanometer heat-insulation plate is wrapped with an aluminum foil film.
On the basis of the technical scheme, a first high-temperature-resistant adhesive layer is arranged between the nanometer heat-insulation plate and the fiber heat-insulation plate.
On the basis of the technical scheme, a second high-temperature-resistant adhesive layer is arranged between the fiber heat-insulation plate and the organic silicon rubber layer.
On the basis of the technical scheme, the thicknesses of the first high-temperature-resistant adhesive layer and the second high-temperature-resistant adhesive layer are both 1-5 mm.
On the basis of the technical scheme, the thickness of the nanometer heat-insulating plate is 10-30 mm.
On the basis of the technical scheme, the thickness of the fiber insulation board is 10-70 mm.
On the basis of the technical scheme, the thickness of the organic silicon rubber layer is 10-30 mm.
In a second aspect, an embodiment of the present invention provides a thermal storage device, including the above-mentioned each technical solution the composite insulation board.
The embodiment of the utility model provides a pair of composite insulation board and thermal storage equipment, nanometer heated board, fibre heated board and organosilicon rubber layer laminate mutually in proper order and arrange, during the use, are close to the heat preservation object with the nanometer heated board and arrange. The composite heat-insulating board of the embodiment of the utility model has simple structure and convenient use and installation, and is mainly suitable for high-efficiency heat insulation when the surface temperature of the heat storage equipment reaches the high-temperature resistant state of a temperature area of 700-1000 ℃; the dominant temperature zones of the nano heat-insulating material and the fiber heat-insulating material are fully utilized, so that the heat-insulating material is efficiently used, and the purposes of high efficiency and economy are achieved.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
With the improvement of the requirement on energy conservation, the traditional single heat-insulating material is difficult to meet the requirements of high efficiency, energy conservation and low cost. The nanometer heat-insulating material has extremely low heat conductivity coefficient and excellent fireproof performance, and the heat-insulating performance of the nanometer heat-insulating material is not obviously changed within the temperature range of less than 800 ℃, but the problems of material resource shortage, high manufacturing cost and the like need to be improved.
Therefore, for the high temperature resistant working condition of 700 ℃ -1000 ℃, a more advanced heat preservation device is needed to meet the requirements of high efficiency and economy. Therefore, the embodiment of the utility model provides a composite insulation board.
Fig. 1 is the utility model discloses composite insulation board's structural schematic, as shown in fig. 1, the utility model discloses composite insulation board, include: the nanometer heat-insulation board 1, the fiber heat-insulation board 2 and the organic silicon rubber layer 3 are sequentially connected; namely, the bottom surface and the top surface of the fiber heat-insulation plate 2 are respectively connected with the nanometer heat-insulation plate 1 and the organic silicon rubber layer 3; the temperature of one side of the nano heat-insulation board 1 close to the fiber heat-insulation board 2 is less than 500 ℃.
The nano heat insulation board 1 is used as a hot surface of the composite heat insulation board, and the fiber heat insulation board 2 is used as a cold surface of the composite heat insulation board. The cold surface refers to one side of the composite insulation board, which is far away from an insulation object when in use; the hot surface refers to the side of the composite insulation board close to an insulation object when in use.
It can be understood that the thickness of the nano heat-insulation board 1 depends on the temperature of the heat storage device, and the temperature of one side, close to the fiber heat-insulation board 2, of the nano heat-insulation board 1 is lower than 500 ℃. Wherein, the organic silicon rubber layer 3 mainly plays the role of protection and moisture protection.
The embodiment of the utility model provides an in, nanometer heated board 1, fibre heated board 2 and organosilicon rubber layer 3 laminate mutually in proper order and arrange, during the use, are close to the heat preservation object with nanometer heated board 1 and arrange. The composite heat-insulating board of the embodiment of the utility model has simple structure and convenient use and installation, and is mainly suitable for high-efficiency heat insulation when the surface temperature of the heat storage equipment reaches the high-temperature resistant state of a temperature area of 700-1000 ℃; the dominant temperature zones of the nano heat-insulating material and the fiber heat-insulating material are fully utilized, so that the heat-insulating material is efficiently used, and the purposes of high efficiency and economy are achieved.
The preparation method of the nano heat-insulating board 1 includes the following steps:
mixing: uniformly mixing the silicon dioxide aerogel powder with an infrared shielding agent and chopped fibers according to the mass ratio of 1 (0.1-0.5) to (0.01-0.1) to form a mixture;
the preparation method of the orthosilicic acid solution comprises the following steps: in the presence of an acid catalyst, mixing silicate ester and water according to a molar ratio of 1 (18-36), reacting while stirring, controlling the pH value of a reaction system to be less than 3, and standing to obtain an orthosilicic acid solution;
a wetting step: spraying the silicic acid solution onto the mixture under stirring to obtain a wetting material; the adding amount of the orthosilicic acid solution is not more than 20% of the mass of the mixture;
a forming step: forming the wetting material into a plate;
and (3) maintenance: curing the plate in an ammonia atmosphere to obtain a curing guard plate;
and (3) drying: and drying the curing plate to obtain the nano heat-insulating plate.
The preparation method of the fiber insulation board 2 includes the following steps:
uniformly mixing the first polyester staple fibers and the fibers A; the first polyester staple fiber accounts for 50-70% of the total mass of the fiber; the fiber A is selected from one of second polyester staple fiber, polyamide fiber or carbon fiber; the melting point of the first polyester short fiber is 180-200 ℃; the melting point of the second polyester short fiber is 250-260 ℃;
opening and carding the mixed fibers to form a fiber web;
uniformly spraying a phosphorus-nitrogen flame retardant or a phosphorus flame retardant accounting for 2-10% of the total mass of the fibers onto the surface of the fiber web;
obtaining the insulation board by needling, rolling and heat setting the treated fiber net; the needling density of the needling is 1.0-1.5 needles/square centimeter; the rolling pressure during rolling is 2.5-3.5 Mpa, and the rolling speed is 1.13-1.26 m/min; the heat setting temperature is 180-210 ℃, and the heat setting time is 9-12 min.
On the basis of the embodiment, the outer wall of the nanometer heat-insulation board 1 is wrapped with the aluminum foil film 4.
It should be noted that, the aluminum foil film 4 is used to wrap the exterior of the nano heat-insulating board 1, so that the strength of the nano heat-insulating board 1 is increased, the heat radiation can be reflected, and the effects of water resistance and water vapor can be achieved.
In addition to the above embodiments, a first high temperature adhesive layer is provided between the nano heat insulating board 1 and the fiber heat insulating board 2.
The nano heat insulating board 1 and the fiber heat insulating board 2 are bonded together by the first high temperature-resistant adhesive layer.
In addition to the above embodiment, a second high-temperature-resistant adhesive layer is provided between the fiber heat-insulating board 2 and the silicone rubber layer 3.
The fiber heat-insulating board 2 and the silicone rubber layer 3 are bonded together by the second high-temperature-resistant adhesive layer.
In addition to the above embodiments, the thickness of the first high temperature-resistant adhesive layer and the second high temperature-resistant adhesive layer is 1 to 5 mm.
The first high-temperature-resistant adhesive layer and the second high-temperature-resistant adhesive layer are both 2mm thick, and the first high-temperature-resistant adhesive layer and the second high-temperature-resistant adhesive layer are provided to improve the structural strength of the composite heat-insulating board.
It is understood that the high temperature-resistant adhesive layer comprises, by mass, 100 parts of bisphenol A type EP01441-310 epoxy resin, 10 parts of liquid nitrile rubber, 50 parts of corundum powder, and 10 parts of 2-ethyl-4-methylimidazole, and no other solvent is added. The high-temperature resistant adhesive is prepared by stirring and mixing the components.
On the basis of the embodiment, the thickness of the nanometer heat-insulation board 1 is 10-30 mm, the thickness of the fiber heat-insulation board 2 is 10-70 mm, and the thickness of the organic silicon rubber layer 3 is 10-30 mm.
The thickness of the nano heat insulation board 1 is 20mm, the thickness of the fiber heat insulation board 2 is 50mm, and the thickness of the silicone rubber layer 3 is 20 mm. The composite insulation board has a light structure, and can be suitable for the working condition of a 700-1000 ℃ temperature zone.
On the other hand, the embodiment of the utility model provides a heat storage equipment, including above-mentioned each embodiment the composite insulation board.
The embodiment of the utility model provides an in, at nano heat preservation board 1's surface coating aluminium foil membrane 4, at the surface coating high temperature resistant adhesive of the aluminium foil membrane 4 on upper strata, bond fibre heat preservation board 2's bottom surface and the surface of the aluminium foil membrane 4 on upper strata mutually, at fibre heat preservation board 2's top surface coating high temperature resistant adhesive, bond organosilicon rubber layer 3's bottom surface and fibre heat preservation board 2's top surface mutually, contact nano heat preservation board 1 and heat storage equipment at last, nano heat preservation board 1 contacts with heat storage equipment through the aluminium foil membrane 4 of lower floor promptly.
The embodiment of the utility model provides a thermal storage equipment through installation composite insulation board, can solve current thermal storage equipment poor at the heat preservation effect of 700 ℃ -1000 ℃ warm area, the short-lived problem with the insulation material is with high costs of heat preservation layer.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.