A solar window with a flip discoloring

Abstract

A kind of solar energy window of flip discoloration, it includes outer window frame, inner window frame, high light glass, liquid paraffin oil, liquid tank and copper sulfate aqueous solution;Inner window frame is supported by outer window frame, and both are rotationally connected, liquid tank is arranged on any one of the non-supporting two edge frames of inner window frame, another edge frame of the non-supporting two edge frames of inner window frame is encapsulated with multiple high light glass between the liquid tank, liquid paraffin oil is filled in the gap cavity between any two adjacent high light glass, the gap cavity filled with liquid paraffin oil is communicated with the liquid tank, the gap cavity between the remaining two adjacent high light glass and the liquid tank are not communicated, the volume of the gap cavity filled with liquid paraffin oil is less than or equal to the volume of the liquid tank.The application can realize the dynamic optical property regulation of window by rotating window frame and gravity fluid combination design, can meet the demand of building winter and summer to solar radiation heat gain and lighting simultaneously.

Description

TECHNICAL FIELD

[0001] The present application relates to a solar energy efficient utilization building energy-saving device, in particular to a flip color-changing solar window. BACKGROUND

[0002] As a transparent maintenance structure of building, the window has a huge impact on building load. From the perspective of controlling the indoor light and heat environment, in winter, it is necessary to introduce as much solar energy as possible into the room to reduce the indoor heat load; in summer, it is desirable to reduce the solar energy entering the room through the window without affecting the indoor natural lighting, thereby reducing the air conditioning cooling load.

[0003] The solar spectrum energy is mainly concentrated in the wavelength range of 300-3000 nm, and the wavelength of 380-760 nm is the visible light part. If the heat insulation demand of the building in summer is considered, the wave band other than visible light needs to be isolated from the outdoor (i.e. filter other wave band spectrum energy) to achieve the purpose of transmitting visible light while reducing the indoor cooling load. The intelligent window with adjustable optical properties is the key technology to achieve the above purpose. The existing intelligent window technology mainly includes thermal color-changing, electrochromic, photochromic and other dynamic color-changing glass, which has the disadvantages of low visible light transmittance, poor solar radiation ability, high haze, complex structure, high production cost and other disadvantages, which is difficult to be applied on a large scale. SUMMARY

[0004] In order to overcome the prior art, the present application provides a flip color-changing solar window. The present application uses two kinds of incompatible, different density and different transmittance fluids, and uses the window flip to place transparent or non-transparent fluid in the window interlayer as needed to realize the control of the transmittance of the window, so as to solve the dual effect demand of the building glass window in winter and summer.

[0005] A flip color-changing solar window comprises: an outer window frame, an inner window frame, high-transmittance glass, liquid paraffin oil, a liquid storage tank and a copper sulfate aqueous solution.

[0006] The inner window frame is supported by the outer window frame, and the two are rotationally connected. The liquid storage tank is arranged on any one of the non-supporting two side frames of the inner window frame. The other side frame of the non-supporting two side frames of the inner window frame and the liquid storage tank are encapsulated with N layers of high-transmittance glass, N≥2. The gap cavity between any two adjacent layers of high-transmittance glass is filled with liquid paraffin oil. The gap cavity filled with liquid paraffin oil is in communication with the liquid storage tank. When N>2, the gap cavities between the remaining two adjacent layers of high-transmittance glass are not in communication with the liquid storage tank. The liquid storage tank is filled with a copper sulfate aqueous solution. The volume of the gap cavity filled with liquid paraffin oil is less than or equal to the volume of the liquid storage tank.

[0007] Further, the inner window frame and the outer window frame are connected through a horizontal direction rotating bearing. The inner window frame rotates 360° in the vertical direction relative to the outer window frame.

[0008] Further, the copper sulfate aqueous solution is replaced by water-based ATO nanofluid.

[0009] Further, the volume ratio of liquid paraffin oil and copper sulfate aqueous solution is 1:1.

[0010] The beneficial effects of the present application compared to the prior art are:

[0011] 1. The present application combines the rotating window frame with the gravity fluid, and the dynamic optical property of the window can be regulated by turning the window, and the demand for solar radiation heat and lighting in winter and summer can be met.

[0012] 2. In summer, the copper sulfate aqueous solution in the glass interlayer selectively filters the sunlight spectrum into a high-efficiency visible light spectrum, which can maximize indoor lighting while isolating solar radiation heat.

[0013] 3. In winter, the fluid in the glass interlayer is liquid paraffin oil, which is highly transparent to the solar spectrum, which is beneficial to indoor solar radiation heat.

[0014] The technical solutions of the present application will be further described below in combination with the drawings and examples: BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is the overall structure diagram of the present application;

[0016] Figure 2 is a cross-sectional view of the present application in a vertical plane;

[0017] Figure 3 is a schematic diagram of the operation mode of the solar window of the present application in winter;

[0018] Figure 4 is a schematic diagram of the operation mode of the solar window of the present application in summer;

[0019] Figure 5 is a solar spectrum transmittance curve of the spectrum-absorbing fluid. DETAILED DESCRIPTION

[0020] The embodiments of the technical solutions of the present application will be described in detail below in combination with the drawings. Unless otherwise specified, the technical terms or scientific terms used in this application should be understood as the usual meaning understood by the skilled person in the field of the present application.

[0021] In combination Figure 1 and Figure 2 It is explained that the turning color-changing solar window of the present embodiment comprises: an outer window frame 1, an inner window frame 2, a high-transmittance glass 4, liquid paraffin oil 5, a liquid storage tank 6 and a copper sulfate aqueous solution 7.

[0022] The inner window frame 2 is supported by the outer window frame 1, and the two are rotationally connected, the liquid storage tank 6 is arranged on any one of the two non-supporting side frames of the inner window frame 2, and the other one of the two non-supporting side frames of the inner window frame 2 is sealed with N layers of high-transmittance glass, N≥2, liquid paraffin oil 5 fills the gap cavity between any two adjacent layers of high-transmittance glass 4, the gap cavity filled with liquid paraffin oil 5 is communicated with the liquid storage tank 6, when N>2, the gap cavities between the remaining two adjacent layers of high-transmittance glass 4 are not communicated with the liquid storage tank 6, the liquid storage tank 6 is filled with copper sulfate aqueous solution 7, and the volume of the gap cavity filled with liquid paraffin oil 5 is less than or equal to the volume of the liquid storage tank 6.

[0023] In the embodiment, the high-transmittance glass 4 is ordinary white glass, has high-transmittance characteristics for full-spectrum sunlight, is installed on the inner window frame 2, and the volume of the gap cavity filled with liquid paraffin oil 5 is less than or equal to the volume of the liquid storage tank 6. In this way, it is ensured that the liquid paraffin oil 5 or the copper sulfate aqueous solution 7 in the gap cavity between the two layers of high-transmittance glass 4 is full during the flipping process. The multiple layers of high-transmittance glass 4 are also conducive to increasing heat preservation.

[0024] Further, the inner window frame 2 and the outer window frame 1 are connected through horizontal rotation bearings 3, and the inner window frame 2 rotates 360° relative to the outer window frame 1 in the vertical direction. In this way, the switching of the operation modes in winter and summer can be realized through flipping.

[0025] The volume ratio of the liquid paraffin oil 5 to the copper sulfate aqueous solution 7 is 1:1, and stratification behavior occurs, and the liquid paraffin oil 5 and the copper sulfate aqueous solution 7 fill the gap cavity between the glass and the liquid storage tank 6. The spectrum-absorbing fluid is the copper sulfate aqueous solution, which has a density greater than water (1 g / cm 3 ), is blue, can absorb near-infrared rays and part of red visible light in the solar spectrum, and has a spectral transmittance as shown in Figure 5 . It can well isolate the solar radiation spectrum.

[0026] The liquid paraffin oil: The liquid paraffin oil is a colorless and transparent liquid, is insoluble in water, has a density of 0.85 g / cm 3 , and can highly transmit the solar spectrum and has high-transmittance characteristics for the full solar spectrum.

[0027] Based on the above-mentioned embodiment, the copper sulfate aqueous solution 7 is replaced by a water-based ATO nanofluid. The water-based ATO nanofluid has the same functional purpose as the copper sulfate aqueous solution.

[0028] Further, the two adjacent glass gap cavities filled with liquid paraffin oil 5 are communicated with the upper opening of the liquid storage tank 6, and the material of the liquid storage tank 6 is acrylic. The acrylic material is resistant to acid, alkali and corrosion, and highly transmits the solar spectrum.

[0029] Preferably, the high-transmittance glass 4 is 2 layers.

[0030] Further, the thickness of the gap cavity between the two adjacent high light transmission glass 4 is 1.5-3mm. Preferably, the thickness of the gap cavity between the two adjacent high light transmission glass 4 is 2mm. In this way, the liquid flow is met, and the window structure is compact.

[0031] Further, the outer window frame 1 and the inner window frame 2 are both aluminum alloy or wooden window frames. The processing is convenient to use. The outer window frame 1 is fixed on the building wall, and the inner window frame 2 is connected with the outer window frame 1 through the rotating bearing 3, and can realize 360° rotation in the vertical direction.

[0032] Figure 3 and Figure 4 respectively are the schematic diagrams of winter and summer operation modes. As shown in Figure 3 , in winter, the liquid tank 6 is placed at the bottom, at this time, the copper sulfate aqueous solution 7 flows into the liquid tank 6 due to the action of gravity, the liquid paraffin oil 5 floats in the gap cavity of the glass interlayer, the window presents a highly transparent state, and can transmit sunlight in the full spectrum, which is beneficial to indoor solar radiation and lighting. As shown in Figure 4 , in summer, by rotating the inner window frame 2, the liquid tank 6 is placed at the top, at this time, due to the action of gravity, the copper sulfate aqueous solution 7 flows into the gap cavity of the glass interlayer, and the liquid paraffin oil 5 floats in the liquid tank 6, at this time, the window as a whole presents a light blue color, and cannot transmit near-infrared light and red light in the solar spectrum, which is beneficial to reduce solar radiation heat, thereby reducing the cooling load of the air conditioner. At the same time, it improves the problem of local temperature unevenness caused by the lower temperature in the near-window area. The solar spectrum transmittance curve of the spectral absorption fluid is shown in Figure 5 .

[0033] The present application can effectively reduce the cooling and heating load of buildings while integrating the existing energy-saving window heat insulation and lighting, which has great significance for environmental protection and energy saving. Through independent control of different spectral bands of solar energy, the ordered utilization of solar spectrum is realized, which has good economic benefits and broad application prospects.

[0034] The present application has been disclosed as above with a preferred embodiment, however, it is not intended to limit the present application, and any person skilled in the art can make some changes or modifications to the above disclosed structure and technical content without departing from the scope of the technical scheme of the present application, and equivalent embodiments with equivalent changes are still within the scope of the technical scheme of the present application.

Claims

1. A solar window that reversibly discolors, characterized by: It comprises: an outer window frame (1), an inner window frame (2), high-transmittance glass (4), liquid paraffin oil (5), a liquid storage tank (6) and a copper sulfate aqueous solution (7). The inner window frame (2) is supported by the outer window frame (1), and the two are rotationally connected. The inner window frame (2) and the outer window frame (1) are connected through a horizontal direction rotating bearing (3). The inner window frame (2) rotates 360° in the vertical direction relative to the outer window frame (1). The liquid storage tank (6) is arranged on any one of the two non-supporting side frames of the inner window frame (2). The other side frame of the two non-supporting side frames of the inner window frame (2) and the liquid storage tank (6) are encapsulated with N layers of high-transmittance glass (4), N≥2. The liquid paraffin oil (5) fills the gap cavity between any two adjacent layers of high-transmittance glass (4). The gap cavity filled with the liquid paraffin oil (5) is communicated with the liquid storage tank (6). When N>2, the gap cavities between the remaining two adjacent layers of high-transmittance glass (4) are not communicated with the liquid storage tank (6). The liquid storage tank (6) is filled with the copper sulfate aqueous solution (7). The volume ratio of the liquid paraffin oil (5) to the copper sulfate aqueous solution (7) is 1:

1. The volume of the gap cavity filled with the liquid paraffin oil (5) is less than or equal to the volume of the liquid storage tank (6).

2. The solar window according to claim 1, wherein: The copper sulfate aqueous solution (7) is replaced by a water-based ATO nanofluid.

3. The solar window of claim 1, wherein: The outer window frame (1) and the inner window frame (2) are both aluminum alloy or wooden window frames.

4. The solar window of claim 1, wherein: The thickness of the gap cavity between the two adjacent layers of high-transmittance glass (4) is 1.5-3mm.

5. The solar window of claim 1, wherein: The material of the liquid storage tank (6) is acrylic.

6. The solar window of claim 1, wherein: The high-transmittance glass (4) is 2 layers.

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