Ventilation equipment for glass curtain wall

Abstract

The utility model discloses glass curtain wall ventilation equipment which comprises a plurality of ventilation units arranged on the inner side of a glass curtain wall. The ventilation unit comprises an interlayer, an air inlet ventilator and an air outlet ventilator; the interlayer is formed by a glass curtain wall and a window sill wall or an inter-window wall; the air inlet ventilator is located on the lower portion of the interlayer, and the air outlet ventilator is located on the upper portion of the interlayer. The air inlet ventilator and the air outlet ventilator each comprise a first ventilation air channel, a second ventilation air channel, a third ventilation air channel and an adjusting valve. The first ventilation air channel is communicated with the indoor space, the second ventilation air channel is communicated with the interlayer cavity, and the third ventilation air channel is communicated with the outdoor space. The adjusting valve adjusts on-off of the first ventilation air channel, the second ventilation air channel and the third ventilation air channel. The window sill wall, the wall between the windows and the ventilator are combined, ventilation of the glass curtain wall is guaranteed, and the building space occupied by the ventilator is reduced.

Description

Technical Field

[0001] The utility model belongs to the field of construction, and in particular relates to glass curtain wall ventilation equipment. Background Art

[0002] High-end office buildings almost all feature monolithic glass curtain walls for their exterior facades. The vast majority of offices are designed as spaces with enclosed windows, primarily to reduce energy loss from opening windows, thereby achieving the desired effect of keeping the building warm in winter and cooling it in summer. However, this structure deprives office windows of their traditional ventilation function, rendering the building's interior space "sealed." Poor indoor ventilation poses significant risks to human health. Common problems include stuffiness, depression, and irritability; dead air circulation, which prevents harmful gases, pathogens, and suspended particulates from being promptly expelled, endangering health; excessive dryness or dampness in the interior, leading to mold and mildew; and the tendency to create a greenhouse effect. Therefore, glass curtain wall office buildings require good ventilation.

[0003] In actual engineering applications, sill walls and span walls are often used inside glass curtain walls to reduce the window-to-wall ratio and address fire protection issues between building floors. However, in the vast majority of engineering applications, these sill walls and span walls are only used to reduce the window-to-wall ratio and improve fire separation performance. The transparent outer layer formed between the glass curtain wall and the solid sill walls and span walls is not utilized to improve the thermal performance of the building envelope.

[0004] External window and curtain wall ventilators are devices used for natural ventilation of exterior windows and curtain walls, and are generally used for natural ventilation of single-layer curtain walls. This is particularly true when the curtain wall lacks opening sashes or the opening sash area is very small. Currently, curtain wall ventilators on the market combine curtain walls and aluminum panels, typically located in corridors. They have only two modes: open and closed. They create a cantilever at 900 meters above the building floor height, creating a bay window-like effect on the curtain wall. While external window and curtain wall ventilators offer some ventilation benefits, they take up building space.

[0005] How to combine sill walls, interwindow walls and ventilators has become a new research topic for glass curtain wall office buildings, so as to reduce the building space occupied by ventilators while ensuring the ventilation effect of glass curtain wall office buildings. Utility Model Content

[0006] The main purpose of the utility model is to provide a glass curtain wall ventilation device, which combines the window sill wall, the window wall and the ventilator, not only ensuring the ventilation of the glass curtain wall office building, but also reducing the building space occupied by the ventilation equipment.

[0007] The technical solution adopted in this utility model is:

[0008] A glass curtain wall ventilation device comprises a plurality of ventilation units placed inside the glass curtain wall;

[0009] The ventilation unit includes an interlayer, an air inlet ventilator, and an air outlet ventilator;

[0010] The interlayer is formed by a glass curtain wall and a sill wall or a wall between windows;

[0011] The air inlet ventilator is located at the lower part of the mezzanine, and the air outlet ventilator is located at the upper part of the mezzanine; the air inlet ventilator and the air outlet ventilator each include a first ventilation duct, a second ventilation duct, a third ventilation duct, and a regulating valve; the first ventilation duct is connected to the room, the second ventilation duct is connected to the mezzanine cavity, and the third ventilation duct is connected to the outside; the regulating valve regulates the opening and closing of the first ventilation duct, the second ventilation duct, and the third ventilation duct;

[0012] During heat dissipation in summer, the regulating valve of the air inlet ventilator opens and connects the third and second ventilation ducts of the air inlet ventilator, and closes the first ventilation duct; the regulating valve of the air outlet ventilator opens and connects the third and second ventilation ducts of the air outlet ventilator, and closes the first ventilation duct; the cooler outdoor air enters the interlayer cavity from the air inlet ventilator at the lower part of the interlayer, and the hot air in the interlayer cavity is discharged from the interlayer cavity through the air outlet ventilator at the upper part of the interlayer;

[0013] During winter heat collection, the regulating valve of the air inlet ventilator opens and connects the first and second ventilation ducts of the air inlet ventilator, and closes the third ventilation duct; the regulating valve of the air outlet ventilator opens and connects the first and second ventilation ducts of the air outlet ventilator, and closes the third ventilation duct. The relatively cold air in the room enters the interlayer cavity from the air inlet ventilator, and the hot air in the interlayer cavity enters the room from the air outlet ventilator.

[0014] During ventilation in the transition season, the regulating valve of the air inlet ventilator opens and connects the third ventilation duct and the first ventilation duct of the air inlet ventilator, and closes the second ventilation duct; the regulating valve of the air outlet ventilator opens and connects the third ventilation duct and the first ventilation duct of the air outlet ventilator, and closes the second ventilation duct; outdoor air enters the room from the air inlet ventilator, and indoor air is discharged to the outside from the air outlet ventilator; or outdoor air enters or is discharged from the room at the same time through the air inlet ventilator and the air outlet ventilator, and air from other spaces in the building is discharged or enters the room from the room door.

[0015] According to the above scheme, when the mezzanine is formed by a glass curtain wall and a sill wall, the air inlet ventilator is located at the bottom of the mezzanine, and the air outlet ventilator is located at the top of the mezzanine; and the air inlet ventilator and the air outlet ventilator are arranged on the same side or on different sides; when the mezzanine is formed by a glass curtain wall and a window wall, the air inlet ventilator is located on the lower side of the mezzanine, and the air outlet ventilator is located on the upper side of the mezzanine; and the air inlet ventilator and the air outlet ventilator are arranged on the same side or on different sides; so as to better realize the ventilation of the glass curtain wall office building.

[0016] According to the above solution, the air inlet ventilator and the air outlet ventilator each include a housing, a regulating valve cavity, a first ventilation duct, a second ventilation duct, a third ventilation duct, and a regulating valve;

[0017] The regulating valve chamber is placed in the housing;

[0018] The first ventilation duct, the second ventilation duct, and the third ventilation duct are arranged in a ring on the regulating valve cavity at an angle of 120°. That is, the first ventilation duct, the second ventilation duct, and the third ventilation duct are asymmetrical, and the center lines of each ventilation duct form an angle of 120°.

[0019] The regulating valve is placed in the regulating valve cavity to control the opening and closing of the first ventilation duct, the second ventilation duct, and the third ventilation duct;

[0020] The above structure is not only simple, but also convenient for ventilation of glass curtain wall office buildings and easy to install.

[0021] According to the above scheme, a rain shield is provided at the outermost end of the third ventilation duct of the air inlet ventilator, and a wind and rain shield is provided at the outermost end of the third ventilation duct of the air outlet ventilator to prevent rainwater from entering the glass curtain wall ventilation equipment, thereby improving the service life of the glass curtain wall ventilation equipment.

[0022] According to the above solution, the rain shield and wind shield are provided with a cover plate outside, and the cover plate is provided with backflow plates around. When the glass curtain wall ventilation equipment is not in use, the cover plate is covered to well protect the glass curtain wall ventilation equipment.

[0023] According to the above scheme, the upper part of the outermost end of the third ventilation duct of the air inlet ventilator is provided with a backflow blade extending downward, and the backflow blade does not contact the upper part of the outermost end of the third ventilation duct of the air inlet ventilator; the upper part of the outermost end of the third ventilation duct of the air outlet ventilator is provided with an upper backflow blade extending downward, the lower part of the outermost end of the third ventilation duct of the air outlet ventilator is longer than the upper part of the outermost end of the third ventilation duct of the air outlet ventilator, and the lower part of the outermost end of the third ventilation duct of the air outlet ventilator is provided with a lower backflow blade extending upward, and there is an air flow channel between the upper backflow blade and the lower backflow blade; a drain hole is provided at the lower part of the third ventilation duct of the air outlet ventilator; the above structure can prevent rainwater from affecting the use of the glass curtain wall ventilation equipment, thereby improving the service life of the glass curtain wall ventilation equipment.

[0024] According to the above solution, the regulating valve is a universal regulating valve, which includes a rotating shaft, a transmission gear, and a backflow raft plate group;

[0025] The rotating shaft is mounted on the circular regulating valve cavity;

[0026] The transmission gear is mounted on the rotating shaft;

[0027] The backflow raft group includes a long backflow raft and a short backflow raft, which form an airflow channel (the channel is in a 120° angle shape); the long backflow raft and the short backflow raft are connected to the transmission gear through a transmission chain;

[0028] The rotating shaft drives the transmission gear to rotate, and then drives the backflow raft group to rotate, thereby controlling the opening and closing of the first ventilation duct, the second ventilation duct, and the third ventilation duct of the air inlet ventilator and the air outlet ventilator;

[0029] The above structure is simple and easy to use.

[0030] According to the above scheme, the regulating valve also includes an end plate mounted on the rotating shaft; the end plate is connected to the transmission gear through a transmission chain, and the end plate is connected to the backflow raft group; the rotating shaft drives the transmission gear to rotate, and then drives the end plate to rotate, and the end plate drives the backflow raft group to rotate, thereby controlling the opening and closing of the first ventilation duct, the second ventilation duct, and the third ventilation duct of the air inlet ventilator and the air outlet ventilator.

[0031] According to the above solution, the end plate is plugged into the long backflow raft and the short backflow raft of the backflow raft group; the end plate is used to fix and connect the long backflow raft and the short backflow raft.

[0032] According to the above scheme, the first ventilation ducts of the air inlet ventilator and the air outlet ventilator are connected to the indoor air outlet through the wall ventilation pipe; the first ventilation ducts and the third ventilation ducts of the air inlet ventilator and the air outlet ventilator are equipped with stainless steel wire protective nets to prevent debris from falling into the regulating valve, thereby ensuring the normal use of the entire equipment.

[0033] According to the above scheme, reinforced concrete structural columns are provided at the air inlet ventilator and the air outlet ventilator to ensure that the entire structure is stable and reliable.

[0034] In this utility model, the air inlet ventilator and the air outlet ventilator are adjustable ventilators with 4-speed 3-way functions, made of aluminum profile pipes. The diameter of the regulating valve is generally 120mm, and the width of the air flow channel of the regulating valve is generally 50mm.

[0035] The beneficial effects of the present invention are:

[0036] By installing the air inlet ventilator and the air outlet ventilator in the interlayer formed by the glass curtain wall, the sill wall and the window wall, not only the glass curtain wall and the sill wall are reasonably utilized, the building space occupied by the ventilator is reduced, but also the glass curtain wall office building can achieve good ventilation;

[0037] Reduce the complexity of curtain wall technology, reduce construction costs and improve building energy-saving performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0039] Figure 1 1 is a schematic structural diagram of an air inlet ventilator of a glass curtain wall ventilation device applied to a sill wall in Example 1 (without a regulating valve);

[0040] Figure 2 1 is a schematic structural diagram of an air outlet ventilator of a glass curtain wall ventilation device applied to a sill wall in Example 1 (without a regulating valve);

[0041] Figure 3 This is a schematic diagram of the installation of the glass curtain wall ventilation equipment applied to the window sill wall in Example 1;

[0042] Figure 4 This is a schematic diagram of the airflow organization pattern of the glass curtain wall ventilation equipment applied to the sill wall;

[0043] Figure 5This is a schematic diagram of the minimum unit of airflow organization for glass curtain wall ventilation equipment applied to sill walls;

[0044] Figure 6 This is a schematic diagram of the wall section of the glass curtain wall ventilation equipment applied to the sill wall;

[0045] Figure 7 This is a schematic diagram of the application of summer heat dissipation mode and winter heat collection mode of glass curtain wall ventilation equipment applied to sill walls;

[0046] Figure 8 This is a schematic diagram of the application of transition season ventilation mode and closed mode of glass curtain wall ventilation equipment applied to sill walls;

[0047] Figure 9 Schematic diagram of the structure of the regulating valve, wherein (a) is a front sectional view of the regulating valve, and (b) is a side sectional view of the regulating valve;

[0048] Figure 10 Schematic diagram of the structure of the air inlet ventilator of the glass curtain wall ventilation equipment applied to the window wall in Example 2 (without a regulating valve);

[0049] Figure 11 Schematic diagram of the structure of the air outlet ventilator of the glass curtain wall ventilation equipment applied to the window wall in Example 2 (without a regulating valve);

[0050] Figure 12 This is a schematic diagram of the installation of the glass curtain wall ventilation equipment applied to the window wall in Example 2;

[0051] Figure 13 This is a schematic diagram of the airflow organization pattern of the glass curtain wall ventilation equipment applied to the window wall;

[0052] Figure 14 This is a schematic diagram of the minimum unit of airflow organization for glass curtain wall ventilation equipment applied to window walls;

[0053] Figure 15 This is a schematic diagram of the glass curtain wall ventilation equipment used in the window wall (single span, inlet and outlet on opposite sides);

[0054] Figure 16 It is a schematic plan view of the glass curtain wall ventilation equipment applied to the window wall (double span);

[0055] Figure 17 This is a schematic elevation diagram of a glass curtain wall ventilation system applied to a wall between windows (double span);

[0056] Figure 18 This is a schematic diagram of the application of summer heat dissipation mode and winter heat collection mode of glass curtain wall ventilation equipment applied to window walls;

[0057] Figure 19This is a schematic diagram of the application of transition season ventilation mode and closed mode of glass curtain wall ventilation equipment applied to window walls;

[0058] In the figure: 1. Interlayer, 1.1. Interlayer cavity, 2. Air inlet ventilator, 3. Air outlet ventilator, 4. Glass curtain wall, 5. Window sill wall, 6. Window wall, 7. First ventilation duct, 8. Second ventilation duct, 9. Third ventilation duct, 10. Housing, 11. Regulating valve cavity, 13. Rain shield, 14. Wind and rain shield, 15. Cover plate, 16. Backflow plate, 17. Backflow blade, 18. Upper backflow blade, 19. Lower backflow blade, 20. Drain hole , 21. Regulating valve, 22. Rotating shaft, 23. Backflow raft group, 24. Long backflow raft, 25. Short backflow raft, 26. Air flow channel, 27. Manual adjustment button, 28. Keel, 29. Fireproof blocking, 30. Room partition wall, 31. Ventilation pipe, 32. Phase change material thermal collection layer, 33. Curtain wall cross bar, 34. Window guard rail, 35. Curtain wall column, 36. Air inlet and outlet, 37. Structural floor frame beam, 38. End plate, 39. Transmission gear. DETAILED DESCRIPTION

[0059] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0060] Example 1

[0061] See also Figures 10-19 When the glass curtain wall 4 needs to be fire-separated on the same floor, a window wall 6 (solid wall) of not less than 2 meters wide needs to be set at the fire partition, and a window wall 6 (solid wall) of not less than 1 meter wide needs to be set at the partition wall between the stairwell and the adjacent room.

[0062] Key design points for window wall 6 (1-1.5m wide, ventilators installed on opposite sides): One unit is installed on each floor, serving a functional room on one side (Room 2 on the same floor) and a stairwell on the other side (Room 1 on the same floor) that does not require heating or air conditioning. To achieve opposite-side ventilator installation, the window wall is arranged in an L-shape with the room partition wall, or the partition wall is offset toward Room 1. When the building plan design cannot meet these requirements, ventilators can be installed on the same side. Because the ventilator and the vertical studs 28, which primarily bear the load of the curtain wall, are located on the same plane, the load-bearing connection between the vertical studs and the main structure at each interlayer beam is interrupted. Therefore, reinforced concrete structural columns must be installed at both ends of the window wall as load-bearing components that allow the vertical studs and vertical ventilators to be connected at any elevation. Window wall 6 is equipped with fireproofing 29, room partition walls 30, phase change material thermal insulation layer 32, curtain wall crosspieces 33, window guardrails 34, curtain wall columns 35, and structural floor frame beams 37.

[0063] Key points of the plane design of the window wall 6 (2-3 meters wide window wall): 2 units are set up on each floor, which are used for functional rooms on both sides of the room partition wall 30; the ventilator of room 2 is installed on different sides, and the ventilator of room 1 is installed on the same side; similarly, since the ventilator and the vertical keel 28 that mainly bears the force of the curtain wall are in the same plane position, the force form of the vertical keel 28 connected to the main structure at each interlayer beam is interrupted. Therefore, a reinforced concrete structural column must be set at each ventilator in the window wall 6 as a load-bearing member that can connect the vertical keel of the curtain wall and the vertical ventilator at any elevation.

[0064] See also Figures 10-19 A glass curtain wall ventilation device applied to a window wall 6 includes a plurality of ventilation units placed inside the glass curtain wall. The ventilation unit includes an interlayer 1, an air inlet ventilator 2, and an air outlet ventilator 3.

[0065] The interlayer 1 is formed by a glass curtain wall 4 and a wall 6 between windows.

[0066] The air inlet ventilator 2 is located on the lower side of the interlayer 1, and the air outlet ventilator 3 is located on the upper side of the interlayer 1. The air inlet ventilator 2 and the air outlet ventilator 3 are arranged on the same side or on different sides. The air inlet ventilator 2 and the air outlet ventilator 3 each include an outer shell 10, a first ventilation duct 7, a second ventilation duct 8, a third ventilation duct 9, a regulating valve cavity 11, and a regulating valve 21. The regulating valve cavity 11 is placed in the outer shell 10, and the regulating valve 21 is placed in the regulating valve cavity 11; the first ventilation duct 7 is connected to the indoor room, the second ventilation duct 8 is connected to the interlayer cavity 1.1 of the interlayer 1, and the third ventilation duct 9 is connected to the outdoors. The regulating valve 21 adjusts the on / off of the first ventilation duct 7, the second ventilation duct 8, and the third ventilation duct 9. The first ventilation duct 7, the second ventilation duct 8, and the third ventilation duct 9 are arranged in a ring on the regulating valve chamber 11 at an angle of 120°. That is, the first ventilation duct 7, the second ventilation duct 8, and the third ventilation duct 9 are asymmetrical, and the center lines of each ventilation duct form an angle of 120°.

[0067] In this embodiment, a rain shield 13 is provided at the outermost end of the third ventilation duct 9 of the air inlet ventilator 2, and a wind and rain shield 14 is provided at the outermost end of the third ventilation duct 9 of the air outlet ventilator 3. When the glass curtain wall ventilation system is not in use, a cover plate 15 can be installed outside the rain shield 13 and wind and rain shield 14 to effectively protect the glass curtain wall ventilation system. For further rain protection, backflow plates 16 can be installed around the cover plate 15.

[0068] In this embodiment, the regulating valve 21 is a universal regulating valve and may include a rotating shaft 22, a transmission gear 39, and a backflow raft assembly 23. The rotating shaft 22 is mounted on the circular regulating valve chamber 11. The transmission gear is mounted on the rotating shaft 22. The backflow raft assembly 23 includes a long backflow raft 24 and a short backflow raft 25. Both the long backflow raft 24 and the short backflow raft 25 are folded 120 degrees and form a 120-degree airflow channel 26 (i.e., the airflow channel 26 is shaped at a 120-degree angle). The long backflow raft 24 and the short backflow raft 25 are connected to the transmission gear via a transmission chain. The rotating shaft 22 drives the transmission gear to rotate, which in turn drives the backflow raft assembly 23 to rotate, thereby controlling the flow of the first, second, and third ventilation ducts 7, 8, and 9 of the inlet ventilator 2 and outlet ventilator 3.

[0069] In this embodiment, the regulating valve 21 further includes an end plate 38 that is sleeved onto the rotating shaft 22. The end plate 38 is connected to a transmission gear 39 via a transmission chain and is plugged into the long and short return rafts 24 and 25 of the return raft assembly. The rotating shaft 22 drives the transmission gear 39 to rotate, which in turn drives the end plate 38, which in turn drives the return raft assembly to rotate, thereby controlling the flow of the first, second, and third ventilation ducts 7, 8, and 9 of the inlet and outlet ventilators.

[0070] For ease of operation, a manual adjustment button 27 can be installed on the housing 10 of the air outlet ventilator 3 to adjust the airflow pattern of the glass curtain wall ventilation system. For ease of use, the first ventilation ducts 7 of the air inlet ventilator 2 and the air outlet ventilator 3 can be connected to the indoor air outlet via a through-wall ventilation pipe 31. To prevent impurities from entering the ventilator, stainless steel wire protective mesh can be installed in the first ventilation duct 7 and the third ventilation duct 9 of the air inlet ventilator 2 and the air outlet ventilator 3. To ensure the stability of the entire structure, reinforced concrete structural columns can be installed at the air inlet ventilator 2 and the air outlet ventilator 3.

[0071] There are five airflow organization modes for the window wall 6: the air inlet ventilator 2 and the air outlet ventilator 3 are installed on opposite sides, the air inlet is located at the bottom, and the air outlet is located on opposite sides of the top, and the air inlet and outlet on opposite sides are not at the same elevation; in principle, the airflow organization is mainly carried out within each minimum unit of the airflow organization.

[0072] Minimum unit and layout for airflow organization: Since the vertical curtain wall studs 28 are generally arranged close to the building's exterior wall beams, a relatively enclosed mezzanine space is formed between adjacent vertical studs. Therefore, the two adjacent vertical studs in the window wall 6 become the vertical edges of the minimum unit. The glass curtain wall is fireproofed between layers, with a blocking height of no less than 1.2 meters (0.8 meters when automatic fire extinguishing is installed indoors). The lower horizontal studs of the fireproofing at the room ceiling floor and the upper horizontal studs of the fireproofing at the room floor are used as the horizontal edges of the minimum unit. When designing the curtain wall partition, there is at least one horizontal partition within this minimum unit. To create a height difference between the inlet and outlet ventilators, the outlet ventilator is placed in the top compartment and the inlet ventilator is placed in the bottom compartment. To ensure smooth vertical airflow within the minimum unit, horizontal curtain wall studs with a small depth should be used as much as possible to ensure an air circulation gap between the inner surface of the horizontal curtain wall stud and the outer surface of the window wall.

[0073] There are five airflow organization modes:

[0074] Summer Cooling Mode: In summer, the air between the interlayer 1 of the glass curtain wall 4 and the window partition 6 is affected by sunlight, accumulating heat and raising its temperature above the ambient temperature. Airflow organization circulates the hot air in interlayer 1 with the outdoor atmosphere, lowering the air temperature in interlayer 1 and, consequently, the indoor surface temperature of window partition 6, reducing summer air conditioning energy consumption. The regulating valve 21 of the air inlet ventilator 2 opens and connects the third and second ventilation ducts 9 and 8 of the air inlet ventilator 2, while closing the first ventilation duct 7. The regulating valve 21 of the air outlet ventilator 3 opens and connects the third and second ventilation ducts 9 and 8 of the air outlet ventilator 3, while closing the first ventilation duct 7. Airflow Organization and Direction: Cooler outdoor air enters interlayer cavity 1.1 from the air inlet ventilator 3 at the bottom of interlayer 1. The hot air within interlayer cavity 1.1 is discharged from interlayer cavity 1.1 through the air outlet ventilator 3 at the top of interlayer 1.

[0075] Winter Heat Collection Mode: During sunny days in winter, the air between the interlayer 1 of the glass curtain wall 4 and the window partition 6 is affected by sunlight, causing heat to accumulate, reaching a temperature higher than the indoor ambient temperature. Airflow organization circulates the hot air in interlayer 1 with the indoor air, raising the indoor ambient temperature and reducing winter heating and air conditioning energy consumption. The regulating valve 21 of the air inlet ventilator 2 opens and connects the first and second ventilation ducts 7 and 8 of the air inlet ventilator 2, while closing the third ventilation duct 9. The regulating valve 21 of the air outlet ventilator 3 opens and connects the first and second ventilation ducts 7 and 8 of the air outlet ventilator 3, while closing the third ventilation duct 9. Airflow Organization and Direction: Cooler indoor air enters interlayer 1 from the vent near the room floor through the ventilation pipe 31 and the air inlet ventilator 2 at the bottom of interlayer 1. The hot air in interlayer 1 enters the room from the air outlet vent 3 at the top of interlayer 1.

[0076] Transition Season (Spring and Autumn) Ventilation Mode: Natural ventilation is the primary ventilation mode during the transition season. Indoor and outdoor air are exchanged directly through the ventilator, and interlayer 1 does not participate in airflow organization. The regulating valve 21 of the air inlet ventilator 2 opens and connects the third ventilation duct 9 and the first ventilation duct 7 of the air inlet ventilator 2, while the second ventilation duct 8 is closed. The regulating valve 121 of the air outlet ventilator 3 opens and connects the third ventilation duct 9 and the first ventilation duct 7 of the air outlet ventilator 3, while the second ventilation duct 8 is closed. Depending on the airtightness of the room's interior walls, two different airflow patterns can be formed (room self-circulation and building circulation). Airflow direction (when the door on the room's interior wall is closed and airtightness is good, room self-circulation is formed): Outdoor air enters through the air inlet ventilator 2 at the bottom of interlayer 1, enters the room through the ventilation pipe 31 and the air vent near the room floor, and is discharged outdoors through the air outlet vent 3 near the top of the room floor in the window wall 6. Or, the air flow organization direction (when the door on the wall inside the room is open and the air tightness is poor, convection is formed between the room and other spaces in the building, forming a building circulation): under the condition of the pressure difference of the entire exterior wall of the building, the outdoor air enters or is discharged from the room at the same time through the air inlet ventilator 2 at the bottom of the mezzanine 1 and the air outlet ventilator 3 at the top of the mezzanine 1, and the air from other spaces in the building is discharged from or enters the room through the room door.

[0077] Closed mode: The air inlet ventilator 2 and the air outlet ventilator 3 are closed, and no airflow is generated. The air in the interlayer 1 can only form internal convection in the closed space.

[0078] The following table details the rotational states of the regulating valves 21 of the air inlet ventilator 2 and the air outlet ventilator 3 in various modes, with the closed state of the regulating valve 21 being considered a rotation of 0°. The table below indicates that the air inlet and outlet rotate at the same angle in various states, but in opposite directions.

[0079]

[0080] Example 2

[0081] Key points of window sill wall design: An airflow organizing unit is set within the height range of the window sill wall 5 and the lower structural beam. The top surface of the top air outlet ventilator 3 and the top decorative finish surface of the window sill wall 5 are controlled in the same plane to ensure the visual appearance; the bottom surface of the lower air inlet ventilator 2 and the bottom surface of the structural beam leave the structural thickness of the fireproof sealing layer.

[0082] If the glass curtain wall 4 spans multiple floors, a fire barrier of at least 1.2 meters (0.8 meters if automatic fire extinguishing is installed indoors) is required at the floor separation. This requires a solid sill wall 5 (on the floor slab) or a solid hanging panel (below the floor beam) to line the interior of the glass curtain wall 4. Alternatively, as the window-to-wall ratio increases, the thermal performance requirements for the glass curtain wall 4 become increasingly stringent, causing the construction cost of the glass curtain wall to rise sharply. To reduce the designed window-to-wall ratio, a sill wall 5 can be built on the floor slab inside the glass curtain wall 4.

[0083] Customize curtain wall ventilator components according to the application scenario of sill wall 5.

[0084] See also Figures 1-9 This embodiment differs from the first embodiment in that, when the interlayer 1 is formed by the glass curtain wall 4 and the sill wall 5, the inlet ventilator 2 is located at the bottom of the interlayer 1, and the outlet ventilator 3 is located at the top of the interlayer 1; the inlet ventilator 2 and the outlet ventilator 3 are arranged on the same side or on opposite sides. Downward-extending reverse flow blades 17 are provided at the upper portion of the outermost end of the third ventilation duct 9 of the inlet ventilator 2, and the reverse flow blades 17 do not contact the upper portion of the outermost end of the third ventilation duct 9 of the inlet ventilator 2. The upper part of the outermost end of the third ventilation duct 9 of the air outlet ventilator 3 is provided with an upper backflow blade 18 extending downward, the lower part of the outermost end of the third ventilation duct 9 of the air outlet ventilator 3 is longer than the upper part of the outermost end of the third ventilation duct 9 of the air outlet ventilator 3, and the lower edge of the outermost end of the third ventilation duct 9 of the air outlet ventilator 3 is provided with a lower backflow blade 19 extending upward, and there is an air flow channel between the upper backflow blade 18 and the lower backflow blade 19; a drain hole 20 is provided at the lower part of the third ventilation duct 9 of the air outlet ventilator 3.

[0085] Based on different seasonal needs and usage scenarios, there are five airflow organization modes for the sill wall 5. In principle, airflow organization is mainly carried out within each minimum airflow organization unit.

[0086] Minimum airflow organization unit and layout: Because curtain wall vertical studs are typically placed close to the building's exterior wall beams, a relatively enclosed mezzanine space is formed between adjacent vertical studs. Therefore, the mezzanine space enclosed by these two vertical studs, the inlet ventilator at the bottom of the sill wall, and the outlet ventilator at the top of the sill wall forms the minimum airflow organization unit. When designing curtain wall partitions, no other partitions are included within this minimum unit, meaning the outer curtain wall layer of the minimum unit consists of a single pane of glass.

[0087] Summer heat dissipation mode: In summer, the air between the glass curtain wall and the sill wall is affected by sunlight, causing heat to accumulate and the temperature to be higher than the ambient temperature. Through airflow organization, the hot air in the interlayer is circulated with the outdoor atmosphere, which can reduce the air temperature in the interlayer, thereby reducing the indoor surface temperature of the sill wall and reducing air conditioning energy consumption in summer. The regulating valve of the air inlet ventilator opens and connects the third and second ventilation ducts of the air inlet ventilator, and closes the first ventilation duct; the regulating valve of the air outlet ventilator opens and connects the third and second ventilation ducts of the air outlet ventilator, and closes the first ventilation duct. Airflow organization and flow direction: The cooler outdoor air enters the interlayer from the air inlet ventilator at the bottom of the sill wall interlayer, and the hot air in the interlayer is discharged from the interlayer through the air outlet ventilator at the top of the sill wall interlayer.

[0088] Winter heat collection mode: During sunny days in winter, the air between the glass curtain wall and the sill wall interlayer is affected by sunlight, causing heat to accumulate and reaching a temperature higher than the indoor ambient temperature. The hot air in the interlayer is circulated with the indoor air through airflow organization, which can increase the indoor ambient temperature and thus reduce winter heating and air conditioning energy consumption. The regulating valve of the air inlet ventilator opens and connects the first and second ventilation ducts of the air inlet ventilator, and closes the third ventilation duct; the regulating valve of the air outlet ventilator opens and connects the first and second ventilation ducts of the air outlet ventilator, and closes the third ventilation duct. Airflow organization and flow direction: The cooler indoor air enters the interlayer from the wall foot vent through the ventilation pipe and the air inlet ventilator at the bottom of the sill wall interlayer. The hot air in the interlayer enters the room from the air outlet ventilator at the top of the sill wall interlayer.

[0089] Ventilation mode in transition season (spring and autumn): Natural ventilation mode is mainly used in transition season. Indoor and outdoor air are directly exchanged through ventilators, and the mezzanine does not participate in the airflow organization. The regulating valve of the air inlet ventilator opens and connects the third ventilation duct and the first ventilation duct of the air inlet ventilator, and closes the second ventilation duct; the regulating valve of the air outlet ventilator opens and connects the third ventilation duct and the first ventilation duct of the air outlet ventilator, and closes the second ventilation duct. According to the airtightness characteristics of the interior walls of the room, two different airflow organizations (room self-circulation and building circulation) can be formed. Airflow organization direction (when the door on the interior wall of the room is closed and the airtightness is good, room self-circulation is formed): Outdoor air enters from the air inlet ventilator at the bottom of the window sill wall mezzanine, enters the room through the ventilation pipe and the wall foot vent, and the indoor air is discharged to the outside from the air outlet ventilator at the top of the window sill wall mezzanine. Or, the air flow organization direction (when the door on the wall inside the room is open and the air tightness is poor, convection is formed between the room and other spaces in the building, forming a building circulation): under the condition of the pressure difference of the entire exterior wall of the building, the outdoor air enters or is discharged from the room at the same time through the air inlet ventilator at the bottom of the sill wall interlayer and the air outlet ventilator at the top of the sill wall interlayer, and the air from other spaces in the building is discharged from or enters the room through the room door.

[0090] Closed mode: The ventilator is closed and no airflow is generated. The air in the mezzanine can only form internal convection in the closed space.

[0091] The following table shows the rotation states of the ventilator control valve in various modes, with the closed state of the control valve being considered as 0° rotation. The table below shows that the inlet and outlet rotate at the same angle in various modes, but in opposite directions.

[0092]

[0093] In the present invention, the air inlet ventilator 2 and the air outlet ventilator 3 are adjustable ventilators with a 4-speed 3-way function, and are made of aluminum profile pipes. The diameter of the regulating valve 21 is generally 120 mm, and the width of the air flow channel 26 of the regulating valve 21 is generally 50 mm.

[0094] In this utility model, a ventilation unit is a single room or a single enclosed indoor space in a building. Due to the requirement for fire separation between rooms, the airflow of the ventilation unit should not, in principle, cross a single room or a single enclosed indoor space in a building. In principle, the two modes of window wall and window sill wall should not be used simultaneously in the same room.

[0095] In this utility model, since the minimum airflow organization unit requires that the mezzanine of each unit is relatively closed, there are certain requirements for the two convection ports facing the room and the mezzanine among the three convection ports of each ventilator. In order to maximize the optimization of the design, it is necessary to carry out the architectural design of civil engineering and curtain walls in accordance with certain principles, and at the same time do a good job in the architectural structure design.

[0096] In this utility model, the fireproof structure: the fireproof seal at the air inlet ventilator should penetrate the exterior wall of the civil engineering and the inner surface of the curtain wall glass; at the air outlet ventilator, influenced by the need for direct access to the indoor air outlet, the fireproof seal only penetrates between the exterior wall of the civil engineering and the inner surface of the ventilator. When there are strict protective separation requirements, the fire resistance of the ventilator itself should be strengthened. The tubular profile can be filled with fireproof material, and the regulating valve should be made of fireproof material. The regulating valve can also be automatically closed by the fire signal.

[0097] In the present invention, the ventilation pipe: one end of the ventilation pipe passing through the wall is connected to a convection port of the air inlet ventilator, and the other end is connected to the air inlet and outlet 36 on the wall; the elevation of the bottom of the air inlet and outlet is the elevation of the top of the room skirting; the air inlet and outlet can be provided with a stainless steel wire protective net; the pipe section of the ventilation pipe on the outdoor side is buried in the phase change material layer or the external insulation layer of the exterior wall.

[0098] Because the building's exterior walls are subject to far less sunlight than the roof, phase-change materials are used. This design ensures that their thermal conductivity meets both winter and summer thermal requirements. The phase-change material can collect heat in winter and heat the building. The material's phase-change temperature is set at 24°C, ensuring that cool air at lower levels in the room can convect with the warm air in the interlayer, allowing the interlayer to be exchanged for indoor heat.

[0099] The movement of the air inlet ventilator and the air outlet ventilator of the utility model can be accurately linked by the transmission gear and the transmission chain, and the driving end (manual or electric) can be installed on the side of the air outlet ventilator for easy operation.

[0100] This utility model offers four airflow organization modes, corresponding to four ventilator positions, and can be automatically controlled using intelligent methods. The intelligent control requires data collection, including real-time outdoor ambient temperature, real-time indoor temperature, real-time interlayer temperature, season, and time. Based on this data, an algorithm is used to determine which airflow organization mode to use.

[0101] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0102] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all such improvements and changes should fall within the scope of protection of the claims attached to this utility model.

Claims

1. A glass curtain wall ventilation device, characterized by: It includes several ventilation units placed on the inside of the glass curtain wall; The ventilation unit includes an interlayer, an air inlet ventilator, and an air outlet ventilator; The interlayer is formed by a glass curtain wall and a sill wall or a wall between windows; The air inlet ventilator is located at the lower part of the mezzanine, and the air outlet ventilator is located at the upper part of the mezzanine; the air inlet ventilator and the air outlet ventilator both include a first ventilation duct, a second ventilation duct, a third ventilation duct, and a regulating valve; the first ventilation duct is connected to the indoor room, the second ventilation duct is connected to the mezzanine cavity, and the third ventilation duct is connected to the outdoors; the regulating valve regulates the on and off of the first ventilation duct, the second ventilation duct, and the third ventilation duct.

2. The glass curtain wall ventilation device according to claim 1, characterized in that: When the interlayer is formed by a glass curtain wall and a sill wall, the air inlet ventilator is located at the bottom of the interlayer, and the air outlet ventilator is located at the top of the interlayer; and the air inlet ventilator and the air outlet ventilator are arranged on the same side or on different sides; When the interlayer is formed by a glass curtain wall and a window wall, the air inlet ventilator is located on the lower side of the interlayer, and the air outlet ventilator is located on the upper side of the interlayer; and the air inlet ventilator and the air outlet ventilator are arranged on the same side or on different sides.

3. The glass curtain wall ventilation device according to claim 1, characterized in that: The air inlet ventilator and the air outlet ventilator each include a shell, a regulating valve cavity, a first ventilation air duct, a second ventilation air duct, a third ventilation air duct, and a regulating valve; The regulating valve chamber is placed in the housing; The first ventilation duct, the second ventilation duct and the third ventilation duct are arranged in a ring on the regulating valve cavity at an angle of 120 degrees; The regulating valve is placed in the regulating valve cavity to control the opening and closing of the first ventilation airway, the second ventilation airway and the third ventilation airway.

4. The glass curtain wall ventilation device according to claim 3, characterized in that: The outermost end of the third ventilation duct of the air inlet ventilator is provided with a rain shield, and the outermost end of the third ventilation duct of the air outlet ventilator is provided with a wind and rain shield.

5. The glass curtain wall ventilation device according to claim 4, characterized in that: Cover plates are arranged outside the rain shield piece and the wind and rain shield piece, and backflow plates are arranged around the cover plates.

6. The glass curtain wall ventilation device according to claim 3, characterized in that: The upper portion of the outermost end of the third ventilation duct of the air inlet ventilator is provided with a downwardly extending reverse flow blade, and the reverse flow blade does not contact the upper portion of the outermost end of the third ventilation duct of the air inlet ventilator; The upper part of the outermost end of the third ventilation duct of the air outlet ventilator is provided with an upper backflow blade extending downward, the lower part of the outermost end of the third ventilation duct of the air outlet ventilator is longer than the upper part of the outermost end of the third ventilation duct of the air outlet ventilator, and the lower part of the outermost end of the third ventilation duct of the air outlet ventilator is provided with a lower backflow blade extending upward, and an air flow channel is provided between the upper backflow blade and the lower backflow blade; a drain hole is provided at the lower part of the third ventilation duct of the air outlet ventilator.

7. The glass curtain wall ventilation device according to claim 3, characterized in that: The regulating valve comprises a rotating shaft, a transmission gear, and a backflow raft assembly; The rotating shaft is mounted on the regulating valve cavity; The transmission gear is mounted on the rotating shaft; The backflow raft group includes a long backflow raft and a short backflow raft, which form an airflow channel; the long backflow raft and the short backflow raft are connected to the transmission gear through a transmission chain; The rotating shaft drives the transmission gear to rotate, and then drives the backflow raft plate group to rotate, and then controls the opening and closing of the first ventilation duct, the second ventilation duct and the third ventilation duct of the air inlet ventilator and the air outlet ventilator.

8. The glass curtain wall ventilation device according to claim 7, characterized in that: The regulating valve also includes an end plate sleeved on the rotating shaft; the end plate is connected to the transmission gear through a transmission chain, and the end plate is connected to the backflow raft plate group; the rotating shaft drives the transmission gear to rotate, and then drives the end plate to rotate, and the end plate drives the backflow raft plate group to rotate, thereby controlling the opening and closing of the first ventilation duct, the second ventilation duct, and the third ventilation duct of the air inlet ventilator and the air outlet ventilator.

9. The glass curtain wall ventilation device according to claim 1, characterized in that: The first ventilation ducts of the air inlet ventilator and the air outlet ventilator are connected with the indoor air outlet through the wall ventilation pipe; the first ventilation ducts and the third ventilation ducts of the air inlet ventilator and the air outlet ventilator are provided with stainless steel wire protective nets.

10. The glass curtain wall ventilation device according to claim 1, characterized in that: Reinforced concrete structural columns are provided at the air inlet ventilator and the air outlet ventilator.

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