Phase change energy storage fire-resistant insulation board based on calcium silicate board and production method of phase change energy storage fire-resistant insulation board

Abstract

The invention discloses a phase-change energy-storage fire-resistant insulation board based on a calcium silicate board and a production method of the phase-change energy-storage fire-resistant insulation board, and belongs to the technical field of production of insulation boards based on calcium silicate boards, the phase-change energy-storage fire-resistant insulation board comprises the calcium silicate board, a phase-change material and a decorative panel, the surface of one side of the calcium silicate board is a non-flat-plate surface, the non-flat-plate surface is filled with the phase change material, and the decoration panel is connected with the non-flat-plate surface of the calcium silicate board through an adhesive; the production method comprises the following steps: preparing the calcium silicate board; processing a non-flat surface on the surface of one side of the calcium silicate board; filling the non-flat surface of the calcium silicate board with a phase change material; the calcium silicate board and the decorative panel are subjected to hot pressing or cold pressing compounding through an adhesive to form the phase change energy storage fireproof heat preservation board based on the calcium silicate board. The phase change energy storage function is added, the effects of being warm in winter and cool in summer that heat dissipation is fast at the high temperature and heat preservation is better at the low temperature are achieved, and the building temperature adjusting function of the fireproof heat preservation plate is remarkably improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of the production of thermal insulation boards based on calcium silicate boards, and particularly relates to a phase change energy storage refractory thermal insulation board based on calcium silicate boards and a production method thereof. Background Art

[0002] Calcium silicate boards have the characteristics of being lightweight, fire-resistant, and high-temperature resistant, and are widely used in industries such as central air-conditioning, construction, and chemical engineering. They are one of the most popular green and environmentally friendly building boards at present. Calcium silicate boards are mainly prepared from siliceous materials (such as diatomaceous earth, quartz sand, cement, tail mud, etc.), calcareous materials (such as cement, phosphogypsum, gypsum, calcium carbonate, calcium hydroxide), inorganic fibers or natural plant fibers through processes of mixing into pulp, roll pressing into shape, normal temperature curing, and high-temperature steam curing.

[0003] In practical applications, in many cases, other materials are added to the calcium silicate board to form a composite board to meet specific application needs. For example, the calcium silicate board is combined with a decorative panel to form a refractory thermal insulation board based on calcium silicate boards. Traditional such refractory thermal insulation boards only have the conventional functions of fire resistance, flame retardancy, and passive heat insulation, and do not have energy storage functions. Therefore, their heat insulation performance is not ideal, especially at lower temperatures, and there is also a problem that the heat insulation performance is better at higher temperatures, which is very different from the "warm in winter and cool in summer" requirement of faster heat dissipation at higher temperatures and better heat insulation at lower temperatures required for improving comfort.

[0004] The reasons for the above problems are as follows: The calcium silicate board industry has developed for many years and has only focused on enhancing mechanical properties, reducing process costs (reusing environmental waste resources), and the direction of decorative boards. To enhance mechanical properties, more fiber materials are often selected, and imported coniferous forest fibers are used, resulting in problems such as increased costs of calcium silicate boards and difficult dispersion of fibers; when using the scheme of solid waste recycling and reuse, although a large amount of environmental solid waste materials are consumed on the basis of meeting the use performance of calcium silicate boards, the mechanical properties of calcium silicate boards are often deteriorated; there is a serious lack of research on endowing calcium silicate boards with new functional characteristics, resulting in calcium silicate boards being sold only as low-end building materials, which seriously hinders the calcium silicate board industry from entering the high-end green functional building materials field. Summary of the Invention

[0005] The purpose of the present invention is to provide a phase change energy storage refractory thermal insulation board based on calcium silicate boards with a phase change energy storage function and a production method thereof in order to solve the above problems.

[0006] The present invention realizes the above purpose through the following technical solutions:

[0007] A phase change energy storage fireproof insulation board based on calcium silicate board, comprising a calcium silicate board, a phase change material and a decorative panel. One surface of the calcium silicate board is a non-planar surface, the phase change material is filled on the non-planar surface of the calcium silicate board, and the decorative panel is connected to the non-planar surface of the calcium silicate board through an adhesive.

[0008] Preferably, the calcium silicate board is a cementitious material board comprising the following raw materials: cement, diatomaceous earth, tail mud, gypsum, calcium carbonate, quartz sand, calcium hydroxide and pulp fiber; One of an array of cylinders arranged vertically and horizontally, long rectangular patterns and wavy patterns is provided on the non-planar surface of the calcium silicate board; The phase change material is one of paraffin wax with a phase change temperature of 15-40°C, polyethylene glycol and an aqueous polyvinyl alcohol solution; The adhesive is one of epoxy sealant, AB glue and silicone sealant, and the decorative panel is one of galvanized iron sheet, PVC sticker, melamine decorative panel and alumina ceramic chip.

[0009] A production method of a phase change energy storage fireproof insulation board based on calcium silicate board, comprising the following steps:

[0010] Step 1, prepare the calcium silicate board, and treat the calcium silicate board by one or more of drying, UV resin sealing, penetrating primer and silicone resin sealing, or do not treat the calcium silicate board;

[0011] Step 2, process a non-planar surface on one surface of the calcium silicate board through processing equipment;

[0012] Step 3, use filling equipment to fill the phase change material on the non-planar surface of the calcium silicate board;

[0013] Step 4, first apply the adhesive on the non-planar surface of the calcium silicate board and / or one surface of the decorative panel, and then hot press or cold press the calcium silicate board and the decorative panel to form a phase change energy storage fireproof insulation board based on calcium silicate board.

[0014] Preferably, in Step 1, the calcium silicate board with a thickness of 8-12 mm and a density of 1.0-1.4 g / cm 3 is treated by first drying and then UV resin sealing.

[0015] Preferably, in Step 2, the processing equipment is one or more of a grooving machine, a milling machine, a drilling machine and a numerical control machine tool, and the shape of the non-planar surface is designed by 3D modeling.

[0016] Preferably, in step 2, a model of an array of cylinders, long rectangular patterns or wavy patterns is made using SolidWorks modeling software and input into a numerically controlled machine tool for engraving and processing to form the non-flat surface.

[0017] Preferably, in step 3, the filling device is a powder filling machine or a liquid filling machine.

[0018] The beneficial effects of the present invention are as follows:

[0019] By providing a non-flat surface on the surface of the calcium silicate board and filling the phase change material in the non-flat surface, a surface structure with high heat dissipation and high interconnectivity is realized on the non-flat surface of the calcium silicate board. Then, the decorative panel is connected to the non-flat surface of the calcium silicate board through an adhesive. On the basis of ensuring the mechanical properties and decorative characteristics of the fireproof insulation board, the phase change energy storage function is added, the heat preservation effect is improved, especially the heat preservation performance is better at lower temperatures, and it has the "warm in winter and cool in summer" effect of faster heat dissipation at higher temperatures and better heat preservation at lower temperatures, significantly improving the temperature regulation function of the fireproof insulation board for buildings, improving the comfort of residents, and having the advantages of simple production process, easy operation, and batch and continuous production. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a perspective view of the phase change energy storage fireproof insulation board based on calcium silicate board before forming according to the present invention;

[0021] Figure 2 is a perspective view of the phase change energy storage fireproof insulation board based on calcium silicate board after forming according to the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The present invention will be further described below with reference to the drawings, embodiments and comparative examples:

[0023] Such as Figure 1 and Figure 2As shown in the figure, the phase change energy storage refractory insulation board based on calcium silicate board of the present invention comprises a calcium silicate board 4, a phase change material 2 and a decorative panel 1. One side surface (the upper surface in the figure) of the calcium silicate board 4 is a non-planar surface. The phase change material 2 is filled on the non-planar surface of the calcium silicate board 4, preferably filled in the concave surface of the non-planar surface of the calcium silicate board 4. The decorative panel 1 is connected to the non-planar surface of the calcium silicate board 4 through an adhesive (not shown in the figure). The calcium silicate board 4 and the decorative panel 1 in the figure are both rectangular flat plates, and can also be cylindrical plates, arc-shaped plates, etc. The calcium silicate board 4 is a cementitious material board comprising the following raw materials: cement, diatomaceous earth, tail mud, gypsum, calcium carbonate, quartz sand, calcium hydroxide and pulp fiber. The non-planar surface of the calcium silicate board 4 is provided with one of an array of cylinders 3 formed by arranging a plurality of cylinders vertically and horizontally, long strip rectangular patterns and wavy patterns. In the figure, it is the array of cylinders 3. The phase change material 2 is one of paraffin wax with a phase change temperature of 15-40°C, polyethylene glycol and an aqueous polyvinyl alcohol solution. The adhesive is one of epoxy sealant, AB glue and silicone sealant. The decorative panel 1 is one of galvanized iron sheet, PVC sticker, melamine decorative panel and alumina ceramic sheet.

[0024] Combined Figure 1 with Figure 2 , the production method of the phase change energy storage refractory insulation board based on calcium silicate board of the present invention comprises the following steps:

[0025] Step 1, prepare the calcium silicate board 4, and treat the calcium silicate board 4 by one or more of drying, UV resin sealing, penetrating primer and silicone resin sealing, or do not treat the calcium silicate board 4. The density of the calcium silicate board 4 can be 0.8-1.0 g / cm 3 (low density), 1.0-1.4 g / cm 3 (medium density), ≥1.4 g / cm 3 (high density), and the thickness can be 4-20 mm, and it goes through processes including drying (or not drying), UV resin sealing (or not sealing), penetrating primer (or not penetrating), silicone resin sealing (or not sealing), etc. Preferably, the calcium silicate board 4 with a thickness of 8-12 mm and a density of 1.0-1.4 g / cm 3 is treated by the method of first drying and then UV resin sealing.

[0026] Step 2, process the non-planar surface on one side surface of the calcium silicate board 4 through processing equipment. The processing equipment is one or more of a grooving machine, a milling machine, a hole-opening machine and a numerical control machine tool. The shape of the non-planar surface is designed by 3D modeling. Preferably, use SolidWorks modeling software to make models of the array of cylinders 3, long strip rectangular patterns or wavy patterns and input them into the numerical control machine tool for engraving and processing to form the non-planar surface.

[0027] Step 3: Use a filling device to fill the phase change material 2 on the non-planar surface of the calcium silicate board 4; the filling device is a powder filling machine or a liquid filling machine;

[0028] Step 4: First apply the adhesive on the non-planar surface of the calcium silicate board 4 and / or one side surface of the decorative panel 1, and then hot-press or cold-press the calcium silicate board 4 and the decorative panel 1 to form a phase change energy storage refractory insulation board based on the calcium silicate board; the hot-pressing temperature is 120-150 °C, the hot-pressing time is 30 min, and the cold-pressing time is 12-24 h.

[0029] Next, taking an example of an embodiment and a comparative example, the phase change energy storage refractory insulation board produced by using the present invention is compared with the refractory insulation board produced by using the traditional method.

[0030] Embodiment:

[0031] The following steps are used to produce a phase change energy storage refractory insulation board based on the calcium silicate board:

[0032] Step 1: Prepare a calcium silicate board with a thickness of 8 mm and a density of 1.0-1.4 g / cm 3 and treat the calcium silicate board by first drying and then sealing it with UV resin;

[0033] Step 2: Use SolidWorks modeling software to make a model of an array of cylinders and input it into a numerical control machine tool for engraving and processing to form the non-planar surface;

[0034] Step 3: Use a powder filling machine to fill paraffin with a phase change temperature of 15-40 °C into the concave surface of the non-planar surface of the calcium silicate board;

[0035] Step 4: First apply silicone sealant on the non-planar surface of the calcium silicate board and / or one side surface of the decorative panel (aluminum oxide ceramic sheet or galvanized iron sheet), and then cold-press the calcium silicate board and the decorative panel to form a phase change energy storage refractory insulation board based on the calcium silicate board, and the cold-pressing time is 24 h.

[0036] Comparative example:

[0037] The following traditional method is used to produce a traditional refractory insulation board based on the calcium silicate board:

[0038] Step 1: Prepare a calcium silicate board with a thickness of 8 mm and a density of 1.0-1.4 g / cm 3 and treat the calcium silicate board by first drying and then sealing it with UV resin;

[0039] Step 2: First, apply silicone sealant on one side surface of the calcium silicate board and / or one side surface of the decorative panel (aluminum oxide ceramic sheet or galvanized iron sheet), and then cold-press and laminate the calcium silicate board and the decorative panel to form a traditional refractory insulation board based on the calcium silicate board. The cold-pressing time is 24 hours.

[0040] The phase change energy storage refractory insulation board based on calcium silicate board obtained in the example and the traditional refractory insulation board based on calcium silicate board obtained in the comparative example were respectively tested. After being kept warm in a 60 °C forced-air oven for 2 hours and then taken out, temperature detection was respectively carried out using an infrared thermal imager, and the following parameters were obtained as shown in the table below:

[0041]

[0042] As can be seen from the above table, under the condition of being kept warm at 60 °C in a forced-air oven for 2 hours, the surface temperature of the traditional refractory insulation board is 50 °C, while the surface temperature of the phase change energy storage refractory insulation board of the present invention is 56 °C, verifying that the phase change energy storage refractory insulation board of the present invention has a better heat storage function; the temperature drop of the surface temperature of the traditional refractory insulation board after 10 minutes is 13 °C, while the temperature drop of the surface temperature of the phase change energy storage refractory insulation board of the present invention after 10 minutes is 17 °C, verifying that the phase change energy storage refractory insulation board of the present invention has a fast and efficient heat dissipation ability at a higher temperature; the surface temperature of the traditional refractory insulation board drops to 24.8 °C after being placed in a room temperature environment of 24 °C for 1 hour, which is basically the same as the ambient temperature; while the surface temperature of the phase change energy storage refractory insulation board of the present invention drops to 28.7 °C after being placed in a room temperature environment of 24 °C for 1 hour, which is significantly higher than the room temperature, verifying that the phase change energy storage refractory insulation board of the present invention has a good heat preservation function at a lower temperature.

[0043] As can be seen from the above, the phase change energy storage refractory insulation board of the present invention has the functions of keeping warm in winter and cool in summer, and automatically adjusting the building temperature in day and night environments, and can reduce the energy consumption loss caused by turning on and off the air conditioner. It is a green functional environmental protection building material.

[0044] The above embodiments are only preferred embodiments of the present invention, and do not limit the technical solutions of the present invention. Any technical solution that can be achieved on the basis of the above embodiments without creative labor shall be regarded as falling within the scope of the patent rights of the present invention.

Claims

1. A phase-change energy storage fire-resistant insulation board based on calcium silicate board, comprising a calcium silicate board, characterized in that: It also includes a phase change material and a decorative panel. One side surface of the calcium silicate board is a non-flat surface. The phase change material is filled on the non-flat surface of the calcium silicate board. The decorative panel is connected to the non-flat surface of the calcium silicate board through an adhesive.

2. The phase-change energy storage fire-resistant insulation board based on calcium silicate board according to claim 1 is characterized in that: The calcium silicate board is a cementitious material board comprising the following raw materials: cement, diatomaceous earth, tailings, gypsum, calcium carbonate, quartz sand, calcium hydroxide and pulp fiber; the non-flat surface of the calcium silicate board is provided with one of an array of cylinders formed by multiple cylinders arranged vertically and horizontally, long rectangular patterns and wavy patterns; the phase change material is one of paraffin, polyethylene glycol and aqueous polyvinyl alcohol solution with a phase change temperature of 15-40°C; the adhesive is one of epoxy sealant, AB glue and silicone sealant, and the decorative panel is one of galvanized iron sheet, PVC sticker, triamine decorative panel and alumina ceramic sheet.

3. A method for producing a phase-change energy storage fire-resistant insulation board based on a calcium silicate board as claimed in claim 1 or 2, characterized in that: The following steps are involved: Step 1, preparing a calcium silicate board, treating the calcium silicate board by one or more of drying, UV resin sealing, penetrating primer and silicone resin sealing, or not treating the calcium silicate board; Step 2, processing a non-flat surface on one side of the calcium silicate board by processing equipment; Step 3, using a filling device to fill the phase change material on the non-flat surface of the calcium silicate board; Step 4: first apply the adhesive to the non-flat surface of the calcium silicate board and / or one side surface of the decorative panel, and then hot-press or cold-press the calcium silicate board and the decorative panel to form a phase-change energy storage fire-resistant insulation board based on the calcium silicate board.

4. The method for producing a phase-change energy storage fire-resistant insulation board based on a calcium silicate board according to claim 3, characterized in that: In step 1, the method of drying first and then sealing with UV resin is adopted to cure the 8-12 mm thick and 1.0-1.4 g / cm 3 The calcium silicate board is processed.

5. The method for producing a phase-change energy storage fire-resistant insulation board based on a calcium silicate board according to claim 3, characterized in that: In step 2, the processing equipment is one or more of a slotting machine, a milling machine, a hole punching machine and a CNC machine tool, and the shape of the non-flat surface is designed by 3D modeling.

6. The method for producing a phase-change energy storage fire-resistant insulation board based on a calcium silicate board according to claim 5, characterized in that: In the step 2, a model of an array of cylindrical, long rectangular strips or wavy strips is made using SolidWorks modeling software and input into a CNC machine tool for engraving and shaping into the non-flat surface.

7. The method for producing a phase-change energy storage fire-resistant insulation board based on a calcium silicate board according to claim 3, characterized in that: In step 3, the filling equipment is a powder filling machine or a liquid filling machine.

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