CN113638676B

CN113638676B - Integrated multifunctional window based on nanofluid

Info

Publication number: CN113638676B
Application number: CN202110974259.6A
Authority: CN
Inventors: 孙蕾; 杨柳
Original assignee: Shenzhen Institute Of Southeast University
Current assignee: Shenzhen Institute Of Southeast University
Priority date: 2021-08-24
Filing date: 2021-08-24
Publication date: 2022-09-23
Anticipated expiration: 2041-08-24
Also published as: CN113638676A

Abstract

The invention discloses an integrated multifunctional window based on nanofluid, which comprises outer side glass and inner side glass, wherein sandwich glass and memory type spring steel are arranged between the outer side glass and the inner side glass and connected to form a cavity, the nanofluid is filled in the cavity, a heat exchange water tank is arranged at the top of the cavity, an expansion air bag is arranged in the heat exchange water tank and communicated with the cavity through a pipeline, a water inlet pipe and a water outlet pipe are arranged on the heat exchange water tank, and a reflection airing device used for reflecting sunlight and airing clothes is connected to the outer side of the outer side glass. The solar energy collecting device has the beneficial effects that the nanofluid is adopted, titanium dioxide, silver, titanium nitride and carbon black can be respectively selected for the nanofluid according to different lighting requirements, the transmittance of light is adjusted by utilizing the change of the thickness of the nanofluid, continuous adjustment and flexible lighting can be realized, the energy of solar radiation is utilized through the heat collecting effect of the nanofluid and is used for domestic hot water, and the condition of energy waste is changed; the reflection drying device not only improves the solar energy utilization rate, but also can be used for drying clothes.

Description

Integrated multifunctional window based on nanofluid

Technical Field

The invention relates to the technical field of solar heat collection, in particular to an integrated multifunctional window based on nanofluid.

Background

Solar energy is used as one of renewable energy sources, has the characteristics of cleanness, environmental protection, huge energy storage, ubiquitous existence and suitability for building energy supply, but China receives large solar radiation energy in terrestrial years, wherein more than two thirds of the annual sunshine hours of the area are more than 2200 hours, the solar energy resources are rich, and the solar energy source has great potential in building energy supply. The solar heat collection technology can realize the high-efficiency absorption of solar radiation, and heat is collected through fluid to further realize heat supply or work application. The latest green building design standards specify: the effective heat collection area of the solar hot water supply system of the residential building is determined after calculation, and the heat collection area of each household is not suitable to be less than 1.8m ² It is enough to see the solar energy benefitThe application is urgent. The existing window walls such as French windows, large bay windows and the like are more favorable for utilizing heat generated by solar radiation compared with large building designs.

On the other hand, the transmittance of window glass is generally relatively fixed, and it is difficult to make continuously variable adjustments according to specific needs. With the rapid development of nanofluid technology, the cost of nanofluids has now been low. The nanofluid has long service life and excellent ultraviolet light shielding property, different nanofluid types are selected according to different lighting requirements, the thickness of the nanofluid is adjusted through the telescopic folding mechanism, and continuous lighting adjustment can be achieved as required.

Disclosure of Invention

The invention aims to provide a nanofluid-based integrated multifunctional window which can utilize heat generated by solar radiation and simultaneously realize a continuous lighting adjusting function, aiming at overcoming the defects of the prior art.

In order to solve the technical problems, the invention provides the following technical scheme:

an integrated multifunctional window based on nano fluid comprises outer glass and inner glass, and is characterized in that: be provided with laminated glass between outside glass and the inboard glass, be connected through memory type spring steel between laminated glass and the outside glass, form a cavity between outside glass, laminated glass and the memory type spring steel, the cavity intussuseption is filled with the nanofluid, is provided with heat transfer water tank at the top of cavity, be provided with the inflation gasbag in the heat transfer water tank, the inflation gasbag pass through the pipeline with the cavity is linked together, be provided with inlet tube and outlet pipe on the heat transfer water tank, cold water passes through in the inlet tube gets into heat transfer water tank, hot water passes through the outlet pipe lets in the water storage tank, outside glass's the outside is connected with the reflection drying device who is used for reflection sunshine and sunning clothing.

Furthermore, the reflection drying device comprises a first reflection plate and a second reflection plate which are hinged with each other, the first reflection plate is fixedly connected to the bottom of the outer side glass, the second reflection plate is hinged with the first reflection plate through a hinge, the first reflection plate comprises a first metal sheet and a first drying rod which are arranged at intervals, the second reflection plate comprises a second metal sheet and a second drying rod which are arranged at intervals, the first metal sheet and the second drying rod are hinged with each other through the hinge, and the second metal sheet and the first drying rod are hinged with each other through the hinge.

Furthermore, a glass adjusting device is further arranged and comprises a sliding groove, a bottom plate, an upper pulley and a lower pulley, the sliding groove is fixedly formed in the upper ends of the lateral sides of the outer side glass and the inner side glass, the bottom plate is fixedly arranged at the bottom of the outer side glass and the bottom of the inner side glass, the upper pulley is movably connected to the two sides of the upper end of the sandwich glass, the upper pulley can roll along the sliding groove, the lower pulley is movably connected to the two sides of the lower end of the sandwich glass, and the lower pulley can roll along the bottom plate.

Furthermore, the glass adjusting device further comprises a support, a screw rod and a nut, the support is connected with the fixed shaft of the lower pulley, the nut is movably connected to the inner side glass, one end of the screw rod is fixedly connected to the support, the other end of the screw rod penetrates through the inner side glass and is in threaded connection with the nut, the distance between the outer side glass and the laminated glass can be adjusted by screwing the nut, and the volume of the cavity is changed.

Further, be provided with the ball-cock assembly on the inlet tube, the last floater setting of ball-cock assembly is in the heat transfer water tank, heat transfer water tank's upper portion is type structure, the outlet pipe is the hydrocone type outlet pipe, and the bending part of outlet pipe sets up the little post section on heat transfer water tank upper portion.

Furthermore, a bypass pipe is further arranged, one end of the bypass pipe is communicated with the top of the heat exchange water tank, and the other end of the bypass pipe is communicated with the top of the water storage tank.

Furthermore, the bottom of the expansion air bag is a copper sheet, an opening of the pipeline is arranged on the copper sheet, and a fixing support is fixedly connected between the copper sheet and the heat exchange water tank.

Further, the nano fluid is titanium dioxide or silver or titanium nitride or carbon black.

Furthermore, heat preservation layers are arranged outside the heat exchange water tank, the water outlet pipe, the water storage tank and the bypass pipe.

Compared with the prior art, the invention has the beneficial effects that: 1. the invention utilizes the energy of solar radiation through the heat collection effect of the nanofluid, is used for domestic hot water, and changes the condition of energy waste. The nano fluid has long service life and can ensure that the water quality does not breed bacteria. 2. Through setting up the inflation gasbag, the inside air that fills utilizes gasbag expansion coefficient big, and the volume is showing the characteristics that change when the temperature variation, volume change is not significant when having solved liquid temperature variation, can't realize the problem that the temperature variation comes the control liquid level. 3. The copper sheet that coefficient of heat conductivity is better is adopted to inflation gasbag bottom, and heat transfer area is great, effectively promotes the heat transfer effect. 4. The heat exchange water tank is designed to be in a convex shape, so that the liquid level at the top can be more obvious along with the temperature change, and the liquid level control is more effective. 5. The siphon is used as the water outlet pipe, the siphon effect is ingeniously utilized, so that hot water can automatically flow into the hot water storage tank without external force, and a power device and a control device are omitted. Utilize mechanical temperature control device to replace electron temperature control device, effectively reduced the fault incidence, avoided the power consumption safety problem that electronic component brought simultaneously, avoided the cost higher, the system is complicated, need professional debugging maintenance scheduling problem. 6. Indoor side glass separates it with outdoor side glass and sunshine because there is the midrange nanometer fluid for indoor side glass temperature is lower, weakens indoor personnel and cold and hot uneven uncomfortable sense when being close to the window, improves thermal comfort. 7. When meeting different daylighting demands, titanium dioxide, silver, titanium nitride or carbon black can be selected for use respectively to the nanofluid, and the nanofluid of different materials has different transmittances, can change according to the daylighting needs at will, can adjust nanofluid's thickness simultaneously in succession, has saved the (window) curtain, and thermal-arrest, daylighting function can move simultaneously, satisfy the different regulation demands to indoor daylighting. 8. Through reflection drying device, improved the utilization efficiency of solar energy, the energy utilization effect is showing more, and the sunning pole between the reflector plate prevents ponding, increases the sunning function simultaneously. Through the design, the reflecting sheets are overlapped with the airing rods in a staggered manner after the reflecting airing device is folded, so that the function of only reflecting is achieved, and the three functions of lighting, heat collection and airing can be simultaneously and independently operated.

Drawings

FIG. 1 is a schematic structural view of the reflective drying device of the present invention when it is unfolded;

FIG. 2 is a side view of the reflection drying device of the present invention when it is unfolded;

FIG. 3 is a schematic structural view of the reflection airing device of the present invention when folded;

FIG. 4 is a schematic structural view of the reflection drying device of the present invention.

Wherein: 1-outside glass; 2-inner glass; 3-laminated glass; 4-memory type spring steel; 5-a chamber; 6-a heat exchange water tank; 7-inflating the balloon; 8-a pipeline; 9-a water inlet pipe; 10-water outlet pipe; 11-a water storage tank; 12-a first reflector plate; 13-a second reflector plate; 14-a hinge; 15-a chute; 16-an upper pulley; 17-a scaffold; 18-a screw; 19-a nut; 20-a ball float valve; 21-a by-pass pipe; 22-copper sheet; 23-a fixed support; 24-sunlight; 25-a lower pulley; 26-a bottom plate; 121-a first metal sheet; 122-first drying bar; 131-a second metal sheet; 132-a second drying bar; 201-floating ball.

Detailed Description

For the understanding of the present invention, the following detailed description of the present invention is given with reference to the accompanying drawings, which are provided for illustration purposes only and are not intended to limit the scope of the present invention.

Fig. 1-4 show a specific embodiment of a nanofluid-based integrated multifunction window, comprising an exterior glass 1 and an interior glass 2, a laminated glass 3 is arranged between the outer glass 1 and the inner glass 2, the laminated glass 3 and the outer glass 1 are connected through a memory spring steel 4, a cavity 5 is formed among the outer glass 1, the laminated glass 3 and the memory spring steel 4, the cavity 5 is filled with a nano fluid, a heat exchange water tank 6 is arranged at the top of the cavity 5, an expansion air bag 7 is arranged in the heat exchange water tank 6, the expansion air bag 7 is communicated with the cavity 5 through a pipeline 8, a water inlet pipe 9 and a water outlet pipe 10 are arranged on the heat exchange water tank 6, cold water enters the heat exchange water tank 6 through the water inlet pipe 9, hot water is introduced into the water storage tank 11 through the water outlet pipe 10, and the outer side of the outer glass 1 is connected with a reflection airing device for reflecting sunlight and airing clothes.

Preferably, the reflective drying device includes a first reflection plate 12 and a second reflection plate 13 hinged to each other, the first reflection plate 12 is fixedly connected to the bottom of the outer side of the outer glass 1, the second reflection plate 13 is hinged to the first reflection plate 12 through a hinge 14, the first reflection plate 12 includes a first metal sheet 121 and a first drying rod 122 spaced from each other, the second reflection plate 13 includes a second metal sheet 131 and a second drying rod 132 spaced from each other, the first metal sheet 121 and the second drying rod 132 are hinged to each other through a hinge 14, and the second metal sheet 131 and the first drying rod 122 are hinged to each other through a hinge 14. A glass adjusting device is further arranged, the glass adjusting device comprises a sliding chute 15, a bottom plate 26, an upper pulley 16, a lower pulley 25, a support 17, a screw rod 18 and a nut 19, the sliding chute 15 is fixedly arranged at the upper ends of the side surfaces of the outer glass 1 and the inner glass 2, the bottom plate 26 is fixedly arranged at the bottoms of the outer glass 1 and the inner glass 2, the upper pulley 16 is movably connected to two sides of the upper end of the laminated glass 3, the upper pulley 16 can roll along the sliding chute 15, the lower pulley 25 is movably connected to two sides of the lower end of the laminated glass 3, the lower pulley 25 can roll along the bottom plate 26, the support 17 is connected with a fixed shaft of the lower pulley 25, the nut 19 is movably connected to the inner glass 2, one end of the screw rod 18 is fixedly connected to the support 17, the other end of the screw rod penetrates through the inner glass 2 and is in threaded connection with the nut 19, the distance between the outer glass 1 and the laminated glass 3 can be adjusted by screwing the nut 19, the volume of the chamber 5 is changed. Be provided with ball-cock assembly 20 on inlet tube 9, the floater 201 on ball-cock assembly 20 sets up in heat transfer water tank 6, and heat transfer water tank 6's upper portion is type structure, and outlet pipe 10 is the hydrocone type outlet pipe, and the bending part of outlet pipe 10 sets up the little post section on heat transfer water tank 6 upper portion. A bypass pipe 21 is further arranged, one end of the bypass pipe 21 is communicated with the top of the heat exchange water tank 6, and the other end of the bypass pipe 21 is communicated with the top of the water storage tank 11. The bottom of the expansion air bag 7 is a copper sheet 22, the opening of the pipeline 8 is arranged on the copper sheet 22, and a fixing bracket 23 is fixedly connected between the copper sheet 22 and the heat exchange water tank 6. Any one of titanium dioxide, silver, titanium nitride and carbon black may be arbitrarily used as the nanofluid. And heat insulation layers are arranged outside the heat exchange water tank 6, the water outlet pipe 10, the water storage tank 11 and the bypass pipe 21.

The specific working process and principle of the above embodiment are as follows:

as shown in fig. 1-4, according to different lighting requirements, different nanofluids are selected in the chamber 5, and titanium dioxide, silver, titanium nitride and carbon black are sequentially selected from the light transmission range from strong to weak. When the lighting is adjusted, the screw 18 is driven to move leftwards by screwing the nut 19, and the bracket 17 is pushed to move leftwards due to the fixed connection of the screw 18 and the bracket 17. The support 17 is connected with the fixed shafts of the two lower pulleys 25, so that the two lower pulleys 25 are pushed to roll leftwards along the bottom plate, and meanwhile, the two upper pulleys 16 also roll leftwards along the sliding groove 15, so that the laminated glass 3 is pushed to move leftwards and gradually approaches to the outer glass 1, the memory type spring steel 4 is compressed and folded, so that the thickness of the nano fluid in the chamber 5 is reduced, and the larger the thickness is, the lower the light transmittance is. By design, when the thickness of the nanofluid is moved to the minimum, the liquid level in the inflatable air bag 7 reaches the height of the point c in the figure. When the light transmittance is reduced, the nut 19 is screwed to loosen the screw 18, the upper pulley 16 and the lower pulley 25 roll rightwards due to the pressure of the nano fluid at the liquid level c, the laminated glass 3 moves rightwards along with the rolling, the thickness of the nano fluid is increased, and the light transmittance is reduced.

In daytime, when sunlight irradiates, the nanofluid converts solar radiation into internal energy, and cold water flows into the heat exchange water tank 6 from the water inlet pipe 9 to exchange heat with the copper sheet 22 and the expansion air bag 7. The liquid level of the water in the heat exchange water tank 6 rises, when the liquid level reaches the upper end of the convex container, the cross section becomes small, the rising speed of the liquid level becomes fast, until the floating ball 201 reaches the height of the point a in the figure along with the liquid level, the floating ball valve 20 is closed, and the water inlet is stopped. The temperature of the cold water in the heat exchange water tank 6 rises, so that the gas in the expansion air bag 7 is heated and expanded, and the liquid level continues to rise. When the volume of the expansion air bag 7 is expanded to just make the liquid level in the heat exchange water tank 6 rise to overflow the bent part of the siphon-type water outlet pipe 10, the siphon action of the water outlet pipe 10 makes the hot water in the heat exchange water tank 6 continuously flow into the water storage tank 11 until the liquid level in the heat exchange water tank 6 drops to the height of the inlet of the water outlet pipe 10, namely the height of the point b. At this time, the ball float valve 20 is opened again, cold water is supplemented into the heat exchange water tank 6 from the water inlet pipe 9, and the ball float valve 20 is closed until the liquid level in the heat exchange water tank 6 reaches the a point position again, so that water inflow is stopped. The water in the heat exchange water tank 6 exchanges heat with the copper sheet 22 and the expansion air bag 7 again, so that the heat is utilized, and meanwhile, the expansion air bag 7 also contracts slowly. The top of the heat exchange water tank 6 is connected with the top of the water storage tank 11 through a bypass pipe 21 to balance air pressure, so that hot water can flow down smoothly. The automatic circulation process of water inlet, temperature rise, water discharge and water re-inlet is realized through the ingenious design of the heat exchange water tank 6. The heat preservation layers outside the heat exchange water tank 6, the water outlet pipe 10, the water storage tank 11 and the bypass pipe 21 can play a role in heat preservation of hot water.

As shown in fig. 1, when the airing function is required, the second reflection plate 13 may be turned counterclockwise around the axis of the hinge 14 by applying a certain force. At this time, only the first metal sheet 121 of the first reflection plate 12 can reflect the sunlight 24 to the outside glass 1 for heating the nanofluid, the first airing bars 122 of the first reflection plate 12 and the airing bars 132 of the second reflection plate 13 are used for airing clothes, and the second metal sheet 131 of the second reflection plate 13 cannot reflect the sunlight due to an angle. As shown in fig. 3, when the sun-drying is not needed, a certain force is applied to turn the second reflection plate 13 clockwise around the axis of the hinge 14, and after the second reflection plate is turned, the second metal sheet 131 and the first drying rod 122 are overlapped in a staggered manner, so that the first metal sheet 121 and the second metal sheet 131 can reflect the sunlight to the outer glass 1 at the same time, and at this time, the reflection drying device only has the function of reflecting the sunlight, and has a better energy utilization effect.

The above embodiments are merely illustrative of the technical concept and structural features of the present invention, and are intended to be implemented by those skilled in the art, but the present invention is not limited thereto, and any equivalent changes or modifications made according to the spirit of the present invention should fall within the scope of the present invention.

Claims

1. An integrated multifunctional window based on nano fluid, comprising an outer glass (1) and an inner glass (2), characterized in that: the laminated glass (3) is arranged between the outer glass (1) and the inner glass (2), the laminated glass (3) is connected with the outer glass (1) through the memory type spring steel (4), a cavity (5) is formed among the outer glass (1), the laminated glass (3) and the memory type spring steel (4), the cavity (5) is filled with nano fluid, a heat exchange water tank (6) is arranged at the top of the cavity (5), an expansion air bag (7) is arranged in the heat exchange water tank (6), the expansion air bag (7) is communicated with the cavity (5) through a pipeline (8), a water inlet pipe (9) and a water outlet pipe (10) are arranged on the heat exchange water tank (6), cold water enters the heat exchange water tank (6) through the water inlet pipe (9), and hot water enters a water storage tank (11) through the water outlet pipe (10), the outer side of the outer glass (1) is connected with a reflection airing device for reflecting sunlight and airing clothes; the glass adjusting device is further arranged and comprises a sliding groove (15), a bottom plate (26), an upper pulley (16), a lower pulley (25), a support (17), a screw rod (18) and a nut (19), the sliding groove (15) is fixedly arranged at the upper ends of the side surfaces of the outer side glass (1) and the inner side glass (2), the bottom plate (26) is fixedly arranged at the bottoms of the outer side glass (1) and the inner side glass (2), the upper pulley (16) is movably connected to two sides of the upper end of the laminated glass (3), the upper pulley (16) can roll along the sliding groove (15), the lower pulley (25) is movably connected to two sides of the lower end of the laminated glass (3), the lower pulley (25) can roll along the bottom plate (26), the support (17) is connected with a fixed shaft of the lower pulley (25), and the nut (19) is movably connected to the inner side glass (2), one end of the screw rod (18) is fixedly connected to the support (17), the other end of the screw rod penetrates through the inner side glass (2) and is in threaded connection with the nut (19), the distance between the outer side glass (1) and the laminated glass (3) can be adjusted by screwing the nut (19), and the volume of the cavity (5) is changed.

2. The nanofluid-based integrated multifunctional window according to claim 1, wherein: the reflection airing device comprises a first reflection plate (12) and a second reflection plate (13) which are hinged to each other, the first reflection plate (12) is fixedly connected to the bottom of the outer side glass (1), the second reflection plate (13) is hinged to the first reflection plate (12) through a hinge (14), the first reflection plate (12) comprises a first metal sheet (121) and a first airing rod (122) which are arranged at intervals, the second reflection plate (13) comprises a second metal sheet (131) and a second airing rod (132) which are arranged at intervals, the first metal sheet (121) and the second airing rod (132) are hinged to each other through the hinge (14), and the second metal sheet (131) and the first airing rod (122) are hinged to each other through the hinge (14).

3. The integrated multifunctional nanofluid-based window according to claim 2, wherein: be provided with ball-cock assembly (20) on inlet tube (9), floater (201) on ball-cock assembly (20) set up in the heat transfer water tank, the upper portion of heat transfer water tank (6) is type structure, outlet pipe (10) are hydrocone type outlet pipe, and the bending part of outlet pipe (10) sets up the little post section on heat transfer water tank (6) upper portion.

4. The integrated multifunctional nanofluid-based window according to claim 3, wherein: and a bypass pipe (21) is further arranged, one end of the bypass pipe (21) is communicated with the top of the heat exchange water tank (6), and the other end of the bypass pipe (21) is communicated with the top of the water storage tank (11).

5. The integrated multifunctional nanofluid-based window according to claim 4, wherein: the bottom of the expansion air bag (7) is a copper sheet (22), the opening of the pipeline (8) is arranged on the copper sheet (22), and a fixing support (23) is fixedly connected between the copper sheet (22) and the heat exchange water tank (6).

6. The integrated multifunctional nanofluid-based window according to claim 5, wherein: the nano fluid is titanium dioxide or silver or titanium nitride or carbon black.

7. The integrated multifunctional nanofluid-based window according to claim 6, wherein: and heat preservation layers are arranged outside the heat exchange water tank (6), the water outlet pipe (10), the water storage tank (11) and the bypass pipe (21).