Airflow control system for building glass curtain wall and control method thereof

Abstract

The application discloses a kind of building glass curtain wall air flow control system and its control method, ventilation passage similar to double-layer curtain wall is designed between glass curtain wall and structure column, does not additionally occupy building area, and make full use of the building area that is originally more difficult to effectively utilize, on the other hand, under the premise of not consuming additional energy, heating and cooling the air in the air layer can be realized, and then active regulation of the air temperature in the air layer can be realized.Simultaneously, through the automatic opening and closing of the upper and lower openings of the ventilation passage, self-adaptive control of the air flow is achieved, improving the indoor temperature regulation capability and natural ventilation effect, and widening the applicable temperature range. The application solves the problems of existing double-layer glass curtain wall, such as occupying building area, limited temperature regulation capability, and high cost.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building construction, in particular to a building glass curtain wall air flow control system and a control method thereof. BACKGROUND

[0002] In the 1970s, glass curtain walls were popularized with the development of modern architecture around the world. In recent years, with the highlighting of environmental and energy problems worldwide, people pay more attention to the disadvantages of glass curtain walls, such as poor energy consumption due to poor thermal insulation. Based on the above reasons, glass curtain wall design must also develop towards environmental protection, energy saving and intelligentization.

[0003] At present, the natural ventilation of glass curtain walls is mainly realized by using wind pressure, such as opening windows on glass curtain walls, using ventilators, etc. However, this method has some problems, such as safety risks caused by falling, and the ventilation effect is greatly affected by wind speed and wind direction. In the case of small wind speed or mismatched wind direction, the natural ventilation effect is poor.

[0004] Compared with the traditional single-layer curtain wall system, the natural ventilation effect of the double-layer curtain wall system is better, and is not limited by natural wind speed and wind direction, and is safer and more reliable. The double-layer curtain wall system realizes more efficient natural ventilation, adjusts indoor temperature, improves indoor air quality, and reduces energy consumption.

[0005] However, the existing double-layer glass curtain wall system has the following problems:

[0006] 1. Occupies building area. According to the "Building Engineering Building Area Calculation Specification" of China, the two layers of curtain walls and the space between the two layers of curtain walls jointly constitute the outer wall structure, so the building area should be calculated to the outer edge line of the outer curtain wall, which will cause waste of building area and volume rate;

[0007] 2. Low applicability. Because the air layer of the double-layer curtain wall system needs to have a certain height and depth, it is not suitable for some occasions, such as low-rise buildings or indoor spaces that are too small;

[0008] 3. Limited temperature regulation capacity. Because the double-layer curtain wall system cannot actively regulate the air temperature in the air layer, and cannot realize self-adaptive control of air flow, the temperature regulation capacity is limited, and the applicable temperature range is small;

[0009] 4. High cost. Because two layers of glass curtain walls need to be built, plus installation, maintenance and other costs, the cost is high.

[0010] The information disclosed in this BACKGROUND section is only intended to increase an understanding of the general context in which the present application can be practiced. It should not be taken as an acknowledgement or any form of suggestion that this information forms a prior art that is already widely known in the art. SUMMARY

[0011] In order to overcome the defects of the prior art, the present application provides a building glass curtain wall air flow control system and a control method thereof to solve the problems of the existing double-layer glass curtain wall, such as occupying building area, limited temperature regulation capacity, and high cost.

[0012] To achieve the above-mentioned purpose, the present application provides a building glass curtain wall air flow control system, comprising:

[0013] The glass curtain wall is installed on the outer side of the multi-layer floor of the building structure, and structural columns are cast between the outer edges of the multi-layer floor. The opposite sides of each structural column are connected with the glass curtain wall and the closed plate connected with each structural column. Each structural column, the glass curtain wall, and the closed plate form a cavity. The outer edges of the floor are provided with air transmission holes, and the air transmission holes of the adjacent cavities are connected through the air transmission holes of the multi-layer floor to form an air duct. The upper end of the air duct is provided with an air outlet connected to the outside of the building structure, and the air outlet is provided with a first electric valve.

[0014] The electric shutter is installed on the glass curtain wall.

[0015] The electric door is installed on the air window.

[0016] The second electric valve is installed in the air transmission hole.

[0017] The solar electric heating plate is installed on the sun-facing side of the structural column.

[0018] The spray device is installed in each cavity.

[0019] The controller is connected to the first electric valve, the electric shutter, the electric door, the second electric valve, the solar electric heating plate, and the spray device.

[0020] Further, the glass curtain wall has a double-layer glass, and the electric shutter is installed between the double-layer glass.

[0021] Further, the second electric valve comprises:

[0022] The rotating shaft is rotatably installed in the air window.

[0023] The baffle is fixed to the rotating shaft.

[0024] The motor is drivingly connected to the rotating shaft.

[0025] Further, the air transmission hole is rectangular, the number of the rotating shafts is multiple, the rotating shafts are arranged along the length direction of the air exchange opening, the length of the baffle is adapted to the width of the air transmission hole, and the length of the baffle after splicing is adapted to the length of the air transmission hole.

[0026] Further, the closing plate is curtain glass.

[0027] The application provides a control method of a building glass curtain wall air flow control system, which comprises the following steps:

[0028] When the air temperature is cold, the controller closes the air exhaust opening through the first electric valve, opens the glass curtain wall through the electric shutter to allow sunlight to project on the solar electric heating plate, closes the air transmission hole through the second electric valve, opens the air exchange opening through the electric door leaf, opens the solar electric heating plate and closes the spray device, and the air flow in the ventilation channel is heated by the solar electric heating plate and then supplemented to each layer space of the building structure through the air exchange opening to increase the air temperature of the layer space.

[0029] When the air temperature is warm, the controller opens the air exhaust opening through the first electric valve, opens the air transmission hole through the second electric valve, closes the solar electric heating plate and the spray device, and opens the air exchange opening through the electric door leaf, and the air flow in each layer space is discharged to the outside of the building structure through the ventilation channel under the Bernoulli effect in the ventilation channel to realize air flow exchange and natural ventilation in the layer space.

[0030] When the air temperature is hot, the controller closes the air exhaust opening through the first electric valve, opens the air transmission hole through the second electric valve, opens the air exchange opening through the electric door leaf, opens the spray device, closes the glass curtain wall through the electric shutter to block sunlight from projecting in the ventilation channel, and closes the solar electric heating plate, the spray device sprays wet mist particles to reduce the temperature of the air flow in the ventilation channel, and the cooled air flow in the ventilation channel exchanges with the hot air flow in the layer space through the air exchange opening to reduce the air temperature in the layer space.

[0031] The beneficial effects of this invention are as follows: The airflow control system for building glass curtain walls designs a ventilation channel similar to a double-layer curtain wall between the glass curtain wall and the frame columns (structural columns), without occupying additional building area and making full use of previously difficult-to-utilize building space. This airflow control system is applicable to various types of glass curtain wall buildings, is not limited by building height or interior space size, and maintains consistency with the overall building facade, without affecting interior layout, function, or aesthetics. This airflow control system can heat and cool the air within the air layer without consuming additional energy, thereby achieving active regulation of the air temperature within the air layer. Simultaneously, by automatically opening and closing the upper and lower openings of the ventilation channel, adaptive airflow control is achieved, improving its ability to regulate indoor temperature and natural ventilation effect, and broadening the applicable temperature range.

[0032] On the other hand, the airflow control system for building glass curtain walls of the present invention only needs to be implemented in a local area of ​​the glass curtain wall, without the need to build two layers of glass curtain walls over a large area. The construction cost is low, maintenance is convenient, and energy saving and carbon reduction can be achieved, resulting in significant economic benefits. Attached Figure Description

[0033] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0034] Figure 1 This is a schematic diagram of the airflow control system for building glass curtain walls according to an embodiment of the present invention.

[0035] Figure 2 for Figure 1 The sectional view at point AA.

[0036] Figure 3 for Figure 1 The sectional view at point BB.

[0037] Figure 4 for Figure 2 The sectional view at point CC. Detailed Implementation

[0038] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0039] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0040] Referring to Figures 1 to 4 As shown in the figure, the present application provides a building glass curtain wall air flow control system, comprising: a glass curtain wall 1, an electric shutter 2, an electric door leaf 3, a second electric valve 4, a solar electric heating plate 5, a spraying device 9 and a controller.

[0041] Wherein, the building structure is a frame structure, specifically, the building structure comprises frame columns (structural columns) and multi-layer floors. The frame columns are supported on the multi-layer floors. In this embodiment, the outer edges of the floors are provided with structural columns, and gaps are formed between the outer edges of the floors and the structural columns.

[0042] The glass curtain wall 1 is installed on the outer side of the multi-layer floor 7 of the building structure. The structural columns 6 are cast between the outer edges of the multi-layer floor 7. The structural columns of each layer are coaxially arranged vertically. The opposite sides of each structural column 6 are connected with the glass curtain wall 1 and the closing plate 11 between each structural column 6.

[0043] Each structural column 6, the glass curtain wall 1 and the closing plate 11 form a cavity. In this embodiment, the structural column is a square column. Each structural column 6 has opposite first and second sides. The first side of each structural column 6 is connected with the glass curtain wall 1 and the closing plate 11. The second side of each structural column 6 is connected with the glass curtain wall 1 and the closing plate 11. In each layer of the building structure, the structural column 6, the glass curtain wall 1 and the closing plate 11 form a cavity.

[0044] The outer edges of the floor 7 are provided with air transmission holes. The upper and lower adjacent cavities are connected through the air transmission holes of the multi-layer floor 7 to form an air duct 8. The upper end of the air duct 8 is provided with an air outlet connected to the outside of the building structure. The air outlet is provided with a first electric valve.

[0045] In this embodiment, the lower end of the air duct is provided with an air inlet connected to the outside of the building structure. Correspondingly, the air inlet is also provided with a third electric valve. The controller controls the opening and closing of the air outlet through the first electric valve. The controller controls the opening and closing of the air inlet through the third electric valve.

[0046] The electric shutter 2 is installed on the glass curtain wall 1.

[0047] As a preferred embodiment, the glass curtain wall 1 has double-layer glass. The electric shutter 2 is installed between the double-layer glass.

[0048] Referring to Figure 3 As shown in the figure, the closing plate 11 is provided with an air exchange window. The electric door leaf 3 is installed on the air exchange window.

[0049] In this embodiment, the closing plate 11 is a curtain wall glass. The curtain wall glass is provided with the air exchange window.

[0050] The second electric valve 4 is installed in the air passage hole.

[0051] Referring to Figure 2 In the embodiment, the air passage hole is rectangular.

[0052] Specifically, the second electric valve 4 comprises a rotating shaft, a baffle 41 and a motor.

[0053] The rotating shaft is rotatably installed in the air passage hole. The baffle 41 is fixed to the rotating shaft. The motor is drivingly connected to the rotating shaft.

[0054] The number of the rotating shafts is multiple. The multiple rotating shafts are along the length direction of the air passage hole. The length of the baffle 41 is adapted to the width of the air passage hole. The length of the baffle 41 after splicing on the multiple rotating shafts is adapted to the length of the air passage hole.

[0055] When the multiple baffles are vertically arranged, the air passage hole is fully opened. When the baffles are obliquely arranged, the air passage hole is half closed. When the baffles are horizontally arranged, the air passage hole is fully closed.

[0056] The solar electric heating plate 5 is installed on the sun-facing surface of the structural column 6.

[0057] In some embodiments, the sun-facing surface of the structural column is paved with a solar cell panel, and the structural column is installed with an electric heating plate. The electric heating plate is connected to the solar cell panel. The electric heating plate is connected to the controller. The solar cell panel provides electric energy for the electric heating plate.

[0058] The spray device 9 is installed in each section cavity. Referring to Figure 2 The spray device is installed in each section cavity. Preferably, the spray device is arranged at the upper part of the cavity.

[0059] Specifically, the spray device comprises an atomizing nozzle, a water delivery pipe and a booster water pump. The booster water pump pumps the clean water from the municipal pipe network to the atomizing nozzle through the water delivery pipe. The atomizing nozzle atomizes the clean water into water droplet particles for cooling in each section cavity.

[0060] The controller is connected to the first electric valve, the electric shutter 2, the electric door leaf 3, the second electric valve 4, the solar electric heating plate 5 and the spray device 9.

[0061] The present application provides a control method of a building glass curtain wall air flow control system, comprising the following steps:

[0062] S1: when the air temperature is cold, the controller closes the exhaust port by the first electric valve, opens the glass curtain wall 1 by the electric louver 2 to allow sunlight to shine on the solar heat panel 5, closes the air passage by the second electric valve 4, opens the air exchange port by the electric door leaf 3, opens the solar heat panel 5 and closes the spray device 9, and the air flow in the ventilation channel is heated by the solar heat panel 5 and then supplemented to each layer space of the building structure through the air exchange port to increase the air temperature of each layer space.

[0063] S2: when the air temperature is warm, the controller opens the exhaust port by the first electric valve, opens the air passage by the second electric valve 4, closes the solar heat panel 5 and the spray device 9, and opens the air exchange port by the electric door leaf 3, and the air flow in each layer space is discharged to the outside of the building structure through the ventilation channel under the Bernoulli effect in the ventilation channel to achieve air flow exchange and natural ventilation in each layer space.

[0064] S3: when the air temperature is hot, the controller closes the exhaust port by the first electric valve, opens the air passage by the second electric valve 4, opens the air exchange port by the electric door leaf 3, opens the spray device 9, closes the glass curtain wall 1 by the electric louver 2 to block sunlight from shining on the ventilation channel, and closes the solar heat panel 5, the spray device 9 sprays wet mist particles to reduce the temperature of the air flow in the ventilation channel, and the cooled air flow in the ventilation channel exchanges with the hot air flow in each layer space through the air exchange port to reduce the air temperature in each layer space.

[0065] In this embodiment, the building glass curtain wall air flow control system of the application has three working modes, such as air flow heating mode, natural ventilation and air exchange mode, and air flow cooling mode.

[0066] According to the indoor or outdoor air temperature, the controller selects different working modes. When the air temperature is cold, such as 15-20℃, the air flow heating mode is adopted; when the air temperature is warm, such as 20-26℃, the natural ventilation and air exchange mode is adopted; and when the air temperature is hot, such as 26-30℃, the air flow cooling mode is adopted.

[0067] Natural ventilation and air exchange mode: to realize natural ventilation of the glass curtain wall in the transition season, which is suitable for the time when the outdoor air temperature is pleasant (air temperature 20-26℃). In this mode, the exhaust port and the air inlet of the ventilation channel are opened, the air passages of each layer are opened, the air exchange ports of each layer are opened, and the solar heat panels and the spray cooling device of each layer are closed. In this mode, the ventilation channel forms a "chimney effect", which will bring out the indoor air due to the Bernoulli effect, realize air flow exchange and natural ventilation, improve indoor air quality and comfort, and reduce the opening of the air conditioning and fresh air system.

[0068] Airflow heating mode: air flow exchange using solar energy to heat air is realized, which is suitable for slightly cold weather (air temperature 15-20 DEG C). In this mode, the exhaust port of the ventilation channel is closed, the inlet is opened, the air transmission hole of each layer is opened, the air exchange port of each layer is opened, the solar heating plate of each layer is opened, the spray cooling device of each layer is closed, the electric louver curtain of each layer is opened, the glass curtain wall is opened, and the sun can be irradiated to the solar heating plate through the glass curtain wall. In this mode, the solar heating plate uses solar energy for heat collection, storage and dissipation, and can heat the air in the ventilation channel. As the air temperature rises, the hot air rises upward, but the exhaust port of the ventilation channel is closed, forcing the hot air to exchange with the indoor air of each layer. On the premise of not consuming additional electricity, the indoor heat source is supplemented, the air conditioning opening time or opening intensity is reduced, and micro-ventilation is realized to improve indoor air quality and comfort.

[0069] Airflow cooling mode: air flow exchange using spray cooling is realized, which is suitable for slightly hot weather (air temperature 26-30 DEG C). In this mode, the exhaust port of the ventilation channel is opened, the inlet is closed (each layer space can be ventilated through the window), the air transmission hole of each layer is opened, the air exchange port of each layer is opened, the solar heating plate of each layer is closed, the spray cooling device of each layer is opened, and the electric louver curtain of each layer is closed. The glass curtain wall blocks the sun from shining in to achieve sunshading. In this mode, the spray cooling device atomizes the municipal water after processing (the diameter of the water mist particles is between 5-20 microns), which can cool the air in the ventilation channel. As the air temperature decreases, the cold air moves downward, but the inlet of the ventilation channel is closed, forcing the cold air to exchange with the indoor air of each layer. On the premise of not consuming additional electricity, the indoor cold source is supplemented, the air conditioning opening time or opening intensity is reduced, and micro-ventilation is realized to improve indoor comfort.

[0070] The above three modes are the opening modes of the ventilation channel. In addition to this, the ventilation channel is closed (air temperature below 15 DEG C or above 30 DEG C, air conditioning is opened), at this time the exhaust port and the inlet are closed, the air exchange port of each layer is closed, the air transmission hole of each layer is closed, the solar heating plate and the spray cooling device of each layer are closed, and the built-in electric louver curtain of each layer is opened or closed synchronously with the overall curtain wall system of the building.

[0071] The building glass curtain wall airflow control system of the present application designs a ventilation channel similar to a double curtain wall between the glass curtain wall and the frame column (structural column), which does not occupy additional building area and makes full use of the originally difficult to effectively use building area.

[0072] The building glass curtain wall airflow control system of the present application is suitable for various glass curtain wall buildings, is not limited by building height and indoor space size, and keeps the outer facade consistent with the overall building, without affecting indoor layout, function and aesthetics.

[0073] The building glass curtain wall airflow control system of the present application can heat and cool the air in the air layer without consuming additional energy, thereby actively adjusting the temperature of the air in the air layer. At the same time, by automatically opening and closing the upper and lower openings of the ventilation channel, self-adaptive control of the airflow is achieved, improving the indoor temperature regulation capability and natural ventilation effect, and widening the applicable temperature range.

[0074] The building glass curtain wall airflow control system of the present application only needs to be implemented at a local position of the glass curtain wall, without the need for large-area construction of a two-layer glass curtain wall, and has lower construction cost, convenient maintenance, energy saving and carbon reduction, and remarkable economic effect.

[0075] The above description is only the preferred embodiment of the present application and the explanation of the applied technical principles. It should be understood by those skilled in the art that the scope of the application involved in the present application is not limited to the technical solutions formed by the specific combination of the above technical features, and should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the technical solutions formed by mutually replacing the above features with the technical features disclosed in the present application (but not limited to) having similar functions.

Claims

1. An airflow control system for building glass curtain walls, characterized in that, include: A glass curtain wall is installed on the outside of a multi-story floor slab of a building structure. Structural columns are cast between the outer edges of the multi-story floor slabs. Each structural column has a first side and a second side. The first side of each structural column is connected to the glass curtain wall with a sealing plate, and the second side of each structural column is connected to the glass curtain wall with a sealing plate. Each structural column, the glass curtain wall, and the sealing plate enclose a cavity. Air passage holes are opened on the outer edge of the floor slabs. Multiple adjacent cavities are connected in series through the air passage holes of the multi-story floor slabs to form a ventilation channel. An exhaust port connected to the outside of the building structure is opened at the upper end of the ventilation channel. A first electric valve is installed at the exhaust port. Motorized Venetian blinds, installed on the glass curtain wall; An electric door leaf, wherein the sealing plate has an opening for ventilation, and the electric door leaf is installed in the ventilation opening; The second electric valve is installed in the air passage; Solar heating panels are installed on the sun-facing side of the structural column; A spraying device is installed in each of the cavities described in the section; The controller is connected to the first electric valve, the electric venetian blind, the electric door leaf, the second electric valve, the solar heating panel, and the spray device.

2. The airflow control system for building glass curtain walls according to claim 1, characterized in that, The glass curtain wall has double-glazed windows, and the motorized venetian blinds are installed between the double-glazed windows.

3. The airflow control system for building glass curtain walls according to claim 1, characterized in that, The second electric valve includes: A rotating shaft is rotatably mounted inside the air exchange port; A baffle plate is fixed to the rotating shaft; An electric motor drives the shaft.

4. The airflow control system for building glass curtain walls according to claim 3, characterized in that, The air passage is rectangular, and there are multiple rotating shafts along the length of the air exchange port. The length of the baffle is adapted to the width of the air passage, and the length of the baffles on the multiple rotating shafts after splicing is adapted to the length of the air passage.

5. The airflow control system for building glass curtain walls according to claim 1, characterized in that, The enclosure panel is a curtain wall glass panel.

6. A control method for an airflow control system for a building glass curtain wall as described in any one of claims 1 to 5, characterized in that, Includes the following steps: When the temperature is cold, the controller closes the exhaust vent through the first electric valve, opens the glass curtain wall through the electric louver to allow sunlight to shine on the solar heating panel, closes the air passage through the second electric valve, opens the ventilation port through the electric door, opens the solar heating panel and closes the spray device. The airflow in the ventilation duct is heated by the solar heating panel and then replenished to each floor of the building structure through the ventilation port to increase the temperature of each floor. When the temperature is warm, the controller opens the exhaust port through the first electric valve, opens the air transmission hole through the second electric valve, closes the solar electric heating panel and the spray device, and opens the ventilation port through the electric door. Under the Bernoulli effect in the ventilation duct, the airflow in each layer of space is discharged to the outside of the building structure through the ventilation duct to realize airflow exchange and natural ventilation in each layer of space. When the temperature is hot, the controller closes the exhaust vent through the first electric valve, opens the air passage through the second electric valve, opens the ventilation port through the electric door, activates the spray device, closes the glass curtain wall through the electric louver to block sunlight from entering the ventilation duct, and closes the solar heating panel. The spray device sprays water mist particles to reduce the air temperature in the ventilation duct. The cooled air in the ventilation duct exchanges with the hot air in each floor space through the ventilation port to reduce the temperature in each floor space.

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