CN110805381A - flow window - Google Patents

Abstract

The present invention provides a liquid flow window. The liquid flow window includes a first window glass, a second window glass, a window frame, two first metal tubes and at least one second metal tube with a flat oval cross section; the window frame is divided into an upper window frame by a partition plate and the lower window frame, the first window glass and the second window glass are separated from each other, and are arranged in the lower window frame to form a closed glass interlayer and loaded with the first liquid; the two first metal pipes are respectively vertically penetrated through the partition; The second metal tube is located in the first liquid on the upper part of the glass interlayer, and its two ends are embedded in the two first metal tubes respectively, forming a heat exchange pipeline connected with each other, and the pipeline is filled with the second liquid; the first metal tube The upper part is connected with the external input and output pipes. The liquid flow window has low processing cost and compact structure, can not only reduce the heat transmitted through the window indoors in summer, but also fully utilize the absorbed solar energy, and has broad market prospects.

Description

flow window

technical field

The invention belongs to the technical field of solar energy absorption and relates to a liquid flow window.

Background technique

Multi-layer glazing systems are widely used in modern buildings, and insulating glass windows with inert gas injected into the glass interlayer are the most popular because the higher viscosity of the inert gas reduces the convective heat transfer coefficient between the glasses. Liquidfilled window is an improved multi-layer glazing system, which is based on the improvement of ordinary multi-layer glazing system, filled with liquid medium in the glass interlayer.

However, the liquid flow window (1) in the prior art is in a forced circulation window, and the water pressure in the glass interlayer needs to be precisely controlled, otherwise the glass will be deformed or broken, increasing the risk of liquid leakage in the liquid flow window; ( 2) The flowing liquid in the liquid flow window needs to use a countercurrent casing heat exchanger, which leads to the consumption of materials and energy during the processing and increases the cost. So far, although there have been related researches on flow windows, the flow windows in which static liquid (such as distilled water) is injected into the glass interlayer and embedded in heat exchange tubes have not been studied.

SUMMARY OF THE INVENTION

Based on the technical problems existing in the liquid flow window in the prior art, the object of the present invention is to provide a liquid flow window, the liquid flow window glass interlayer is loaded with a static working medium (first liquid) for absorbing the energy of solar radiation , and one or more heat exchange tubes are arranged in the glass interlayer to pass the heat exchange medium (second liquid) with a lower temperature, and the energy absorbed and converted by the first liquid is indirectly transferred to the second liquid without direct contact heat exchange. Another object of the present invention is to provide a solar heat absorbing window, and the liquid flow window is used as an absorption and utilization device of the solar heat absorbing window.

The object of the present invention is achieved through the following technical solutions:

In one aspect, the present invention provides a liquid flow window comprising: a window glass, a window frame and a heat exchange tube; the window glass includes a first window glass and a second window glass; the heat exchange tube comprising two first metal tubes and at least one second metal tube with a flat oval cross section;

The window frame is divided into an upper window frame and a lower window frame by a partition, the first window glass and the second window glass are separated from each other and fixedly arranged in the lower window frame, the first window glass , a closed glass interlayer space is formed between the second window glass, the partition plate and the window frame, and the glass interlayer is loaded with the first liquid;

The two first metal tubes are respectively vertically penetrated through the separator, the upper part of the first metal tube is located in the upper window frame, and the lower part is located in the lower window frame and is immersed in the first liquid; the A second metal tube is parallel to the separator and located in the first liquid on the upper part of the glass interlayer. A connected heat exchange pipeline is formed between the metal tubes, and the pipeline is filled with the second liquid;

The upper part of the first metal pipe is communicated with the external input and output pipes.

In the above-mentioned liquid flow window, the input pipe is used for inputting low temperature medium into the heat exchange pipe, and the output pipe is used for outputting the heat medium after heat exchange by the heat exchange pipe to a hot water supply system or the like.

In the above-mentioned liquid flow window, the cross section of the second metal tube is flat oval, which helps the liquid to flow smoothly around the tube, and the cylindrical surface displayed by the second metal tube can increase the heat exchange area.

In the above-mentioned liquid flow window, one or more second metal pipes may be connected in parallel with the first metal pipes.

The liquid flow window of the present invention is filled with a first liquid (such as distilled water) in the glass interlayer, and one or more heat exchange tubes are placed horizontally for passing a lower temperature heat exchange medium (second liquid). Under solar radiation, a part of the solar radiation can be absorbed by the working medium (the first liquid) in the glass interlayer, and converted into heat and indirectly transferred to the second liquid without direct contact heat exchange. Therefore, as a solar energy absorption and utilization device, the liquid flow window system can not only reduce the heat gain in the room caused by direct sunlight, but also heat the second liquid in the heat exchange tube; when the heat exchange tubes of multiple liquid flow windows are connected to each other , the accumulated heat will continuously increase the temperature of the second liquid, so that the second liquid has use value. For example, when the second liquid is municipal water supply, the heated second liquid can reduce the energy consumption of the hot water system in the building, thereby reducing the consumption of fossil fuels. On the other hand, the reduction of indoor heat gain caused by solar radiation reduces the energy consumption of air conditioning systems in buildings in summer. In addition, due to the absorption effect of the liquid in the glass interlayer, the solar radiation energy reflected to the outdoor environment is reduced, which can alleviate the urban heat island effect. In the initial design of the liquid flow window system driven by buoyancy, the first liquid circulates in the closed loop formed by the glass layer, the upper countercurrent heat exchanger and the downcomer, while the design of the present invention abandons the liquid flow The counter-flow casing heat exchanger on the upper part of the window can not only reduce material consumption and processing cost, but also make the liquid flow window more compact.

In the above-mentioned liquid flow window, the first liquid is a static medium, so that the static pressure of the pressure working medium in the glass interlayer is relatively small and basically constant. The water pressure inside the glass interlayer can be precisely controlled without causing the glass to deform or break.

In the above-mentioned liquid flow window, the second liquid is a low-temperature medium, which can directly exchange heat with the first liquid in the glass interlayer without using a casing heat exchanger. Therefore, its overall thermal efficiency can be doubled according to the actual operating conditions. Lift.

In the above-mentioned liquid flow window, preferably, a reserved space is provided between the liquid level of the first liquid and the separator. Considering the thermal expansion and contraction of the working medium, a certain space is reserved above the first liquid of the glass interlayer, so no additional external expansion space is required.

In the above liquid flow window, preferably, the second metal tube is a copper tube.

In the above liquid flow window, preferably, the first metal tube is a copper tube.

In the above liquid flow window, preferably, the length of the second metal tube is slightly shorter than the horizontal length of the liquid flow window.

In the above-mentioned liquid flow window, preferably, both ends of the partition plate are respectively provided with holes and soft plugs. The openings reserved on the partition help the working medium in the glass interlayer to be injected or removed under the action of siphon; the soft plugs are used to seal the holes.

In the above-mentioned liquid flow window, preferably, the first liquid is distilled water; the second liquid is a low-temperature medium; further preferably, the second liquid is municipal water supply, which is output to a hot water supply system after heat exchange .

In the above-mentioned liquid flow window, preferably, a support pad is provided at the bottom of the first metal tube where the first metal tube and the second metal tube are embedded. Preferably, a support pad is provided where the first metal tube and the partition pass through. The support pad is used to fix and maintain the positions of the first metal pipe and the second metal pipe.

In the above-mentioned liquid flow window, preferably, the upper parts of the outer sides of the first window glass and the second window glass are covered and provided with a shutter for shielding the heat exchange tube. The shutter is used to cover the metal pipes and the like inside the liquid flow window, so as to keep the appearance of the window beautiful.

In another aspect, the present invention also provides a solar heat absorbing window, wherein the active solar component and/or the passive solar component of the solar heat absorbing window is the liquid flow window described in any one of the above.

The liquid flow window of the present invention can be used in new or renovated green buildings to promote the implementation of concepts such as low-carbon buildings and zero-carbon buildings. The liquid flow window can be used as an active solar component or a passive solar component to promote smart cities develop. On the one hand, the flowing second liquid continuously takes away the solar energy absorbed by the first liquid in the glass interlayer, thereby lowering the surface temperature of the glass inside the glass window system. The lower surface temperature of the inner glass can not only reduce the convection and radiation heat transfer caused by temperature difference, but also effectively reduce the thermal discomfort caused by thermal asymmetry of indoor personnel; Liquids (such as distilled water) do not affect the indoor illuminance, because the visible light transmitted into the room through the liquid flow window is basically the same as the spectrum of the incident sunlight. The liquid flow window can continuously reduce the heat transmitted through the window indoors in summer, and can also fully utilize the absorbed solar energy in the relevant building system, which can effectively collect and utilize solar energy resources, for example, the collected solar energy can preheat domestic water. Therefore, the liquid flow window has a broad market prospect and is more attractive for building projects that require green building assessment and certification.

Description of drawings

The drawings described herein are for explanatory purposes only and are not intended to limit the scope of the present disclosure in any way. In addition, the shapes and proportions of the components in the figures are only schematic and are used to help the understanding of the present invention, and do not specifically limit the shapes and proportions of the components of the present invention. Under the teachings of the present invention, those skilled in the art can select various possible shapes and proportions according to specific conditions to implement the present invention.

1 is a front view of a liquid flow window in an embodiment of the present invention;

Fig. 2 is the side view of the liquid flow window in the embodiment of the present invention;

Description of the symbols in the drawings:

1 window frame, 2 window glass, 3 shutter, 4 support pad, 5 soft plug, 6 first metal pipe, 7 second metal pipe, 8 liquid level, 9 partition, 11 upper window frame, 12 lower window frame , 21 first window glass, 22 second window glass.

Detailed ways

In order to have a clearer understanding of the technical features, purposes and beneficial effects of the present invention, the technical solutions of the present invention are now described in detail below, but should not be construed as limiting the scope of implementation of the present invention.

Under the teaching of the present invention, the skilled person can conceive any possible modifications based on the present invention, and these should be regarded as belonging to the scope of the present invention. It should be noted that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a mechanical connection or an electrical connection, or it may be the internal communication between two components, it may be directly connected, or it may be indirectly connected through an intermediate medium, For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific situations. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for the purpose of illustration only and do not represent the only embodiment.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terms used herein in the specification of the present application are for the purpose of describing particular embodiments only, and are not intended to limit the present application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Example

This embodiment provides a liquid flow window, as shown in FIG. 1 and FIG. 2 , the liquid flow window includes a window glass 2, a window frame 1 and a heat exchange tube; the window glass 2 includes a first window glass 21 and a second window glass 22; the heat exchange tube includes two first metal tubes 6 (preferably copper tubes) and a second metal tube 7 (preferably a copper tube) with a flat oval cross section; the cross section of the second metal tube 7 is flat oval , which helps the liquid flow smoothly around the tube, and at the same time, the tube cylindrical surface displayed by the second metal tube can increase the heat exchange area.

The window frame 1 is divided into the upper window frame 11 and the lower window frame 12 by the partition plate 9. The first window glass 21 and the second window glass 22 are separated from each other, and are fixedly arranged in the lower window frame 12 and are perpendicular to the partition plate 9. A closed glass interlayer space is formed between the first window glass 21, the second window glass 22, the partition plate 9 and the window frame 1, and the glass interlayer is loaded with the first liquid (preferably distilled water); the transparent distilled water will not affect the indoor space Illuminance, because the visible light transmitted through the liquid flow window into the room is basically the same as the spectrum of incident sunlight. The first liquid is a static medium, so that the static pressure of the pressure working medium in the glass interlayer is relatively small and substantially constant. The water pressure inside the glass interlayer can be precisely controlled without causing the glass to deform or break.

The two first metal tubes 6 are respectively vertically penetrated through the partition plate 9. The upper part of the first metal tube 6 is located in the upper window frame 11, and the lower part is located in the lower window frame 12 and is immersed in the first liquid; the second metal tube 7 Parallel to the partition 9 and located in the first liquid on the upper part of the glass interlayer, the two ends of the second metal tube 7 are embedded in the two first metal tubes 6 respectively, and form a communication between the two first metal tubes 6. The heat exchange pipeline is filled with the second liquid (preferably municipal water supply, which is output to the hot water supply system after heat exchange); the municipal water supply of the second liquid is a low-temperature medium, which can directly interact with the first liquid in the glass interlayer For heat exchange, there is no need to use a casing heat exchanger, so the overall thermal efficiency will be doubled according to the actual operating conditions. The upper part of the first metal pipe 6 is connected with the external input and output pipes; the input pipe is used to input low-temperature medium into the heat exchange pipe, and the output pipe is used to output the heat medium after the heat exchange of the heat exchange pipe to the hot water supply system, etc. .

A space is reserved between the liquid level 8 of the first liquid and the separator 9 . Considering the thermal expansion and contraction of the working medium, a certain space is reserved above the first liquid of the glass interlayer, so no additional external expansion space is required.

The length of the second metal tube 7 is slightly shorter than the horizontal length of the flow window.

Two ends of the partition plate 9 are respectively provided with holes, which are blocked by the soft plugs 5 respectively. The openings reserved on the partition help the working medium in the glass interlayer to be injected or removed under the action of siphon.

A support pad 4 is provided at the bottom of the first metal tube 6 where the first metal tube 6 and the second metal tube 7 are embedded;

The upper parts of the outer sides of the first window glass 21 and the second window glass 22 are covered with a shutter 3, which is used to cover the metal pipes and the like inside the liquid flow window, so as to keep the appearance of the window beautiful.

The liquid flow window of the present invention is filled with a first liquid (preferably distilled water) in the glass interlayer, and one or more heat exchange tubes are placed horizontally for passing a lower temperature heat exchange medium (second liquid). Under solar radiation, a part of the solar radiation can be absorbed by the working medium (the first liquid) in the glass interlayer, and converted into heat and indirectly transferred to the second liquid without direct contact heat exchange. Therefore, as a solar energy absorption and utilization device, the liquid flow window system can not only reduce the heat gain in the room caused by direct sunlight, but also heat the second liquid in the heat exchange tube; when the heat exchange tubes of multiple liquid flow windows are connected to each other , the accumulated heat will continuously increase the temperature of the second liquid, so that the second liquid has use value. For example, when the second liquid is municipal water supply, the heated second liquid can reduce the energy consumption of the hot water system in the building, thereby reducing the consumption of fossil fuels. On the other hand, the reduction of indoor heat gain caused by solar radiation reduces the energy consumption of air conditioning systems in buildings in summer. In addition, due to the absorption effect of the liquid in the glass interlayer, the solar radiation energy reflected to the outdoor environment is reduced, which can alleviate the urban heat island effect. In the liquid flow window system originally designed by the inventors driven by buoyancy force, the first liquid circulates in the closed loop formed by the glass layer, the upper countercurrent heat exchanger and the downcomer, but the design of this embodiment discards the liquid flow. The counter-flow casing heat exchanger on the upper part of the flow window can not only reduce material consumption and processing cost, but also make the flow window more compact.

The present embodiment also provides a solar heat absorbing window, and the active solar component and/or the passive solar component of the solar heat absorbing window is the above-mentioned liquid flow window.

The liquid flow window in this embodiment can be used in new or renovated green buildings to promote the implementation of concepts such as low-carbon buildings and zero-carbon buildings. The liquid flow window can be used as an active solar component or a passive solar component to promote smart city Development. On the one hand, the flowing second liquid continuously takes away the solar energy absorbed by the first liquid in the glass interlayer, thereby lowering the surface temperature of the glass inside the glass window system. The lower surface temperature of the inner glass can not only reduce the convection and radiation heat transfer caused by temperature difference, but also effectively reduce the thermal discomfort caused by thermal asymmetry of indoor personnel; Liquids (such as distilled water) do not affect the indoor illuminance, because the visible light transmitted into the room through the liquid flow window is basically the same as the spectrum of the incident sunlight. The liquid flow window can continuously reduce the heat transmitted through the window indoors in summer, and can also fully utilize the absorbed solar energy in the relevant building system, which can effectively collect and utilize solar energy resources, for example, the collected solar energy can preheat domestic water. Therefore, the liquid flow window has a broad market prospect and is more attractive for building projects that require green building assessment and certification.

Claims (10)

1. A liquid flow window, characterized in that the liquid flow window comprises: a window glass, a window frame and a heat exchange tube; the window glass comprises a first window glass and a second window glass; the heat exchange tube comprising two first metal tubes and at least one second metal tube with a flat oval cross section; The window frame is divided into an upper window frame and a lower window frame by a partition, the first window glass and the second window glass are separated from each other and fixedly arranged in the lower window frame, the first window glass , a closed glass interlayer space is formed between the second window glass, the partition plate and the window frame, and the glass interlayer is loaded with the first liquid; The two first metal tubes are respectively vertically penetrated through the separator, the upper part of the first metal tube is located in the upper window frame, and the lower part is located in the lower window frame and is immersed in the first liquid; the A second metal tube is parallel to the separator and located in the first liquid on the upper part of the glass interlayer. A connected heat exchange pipeline is formed between the metal tubes, and the pipeline is filled with the second liquid; the upper part of the first metal tube is communicated with the external input and output pipelines. 2 . The liquid flow window according to claim 1 , wherein a reserved space is provided between the liquid level of the first liquid and the separator. 3 . 3 . The liquid flow window according to claim 1 , wherein the second metal tube is a copper tube; preferably, the first metal tube is a copper tube. 4 . 4. The flow window of claim 1, wherein the length of the second metal tube is slightly shorter than the horizontal length of the flow window. 5 . The liquid flow window according to claim 1 , wherein the two ends of the partition plate are respectively provided with holes and respectively provided with soft plugs. 6 . 6. The liquid flow window of claim 1, wherein the first liquid is distilled water. 7 . The liquid flow window according to claim 1 , wherein the second liquid is a low-temperature medium; preferably, the second liquid is municipal water supply, which is output to a hot water supply system after heat exchange. 8 . 8 . The liquid flow window according to claim 1 , wherein a support pad is provided at the bottom of the first metal tube where the first metal tube and the second metal tube are embedded; preferably, the A support pad is provided where the first metal tube and the partition pass through. 9 . The liquid flow window according to claim 1 , wherein the upper parts of the outer sides of the first window glass and the second window glass are covered with a shutter for shielding the heat exchange tube. 10 . 10. A solar heat absorbing window, characterized in that, the active solar component and/or the passive solar component of the solar heat absorbing window is the liquid flow window according to any one of claims 1-9.

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