Energy-saving thermal insulation curtain wall for building

Abstract

The application relates to an energy-saving building thermal insulation curtain wall, and relates to the technical field of building curtain walls. The energy-saving building thermal insulation curtain wall comprises a curtain wall frame, two pieces of thermal insulation glass forming a hollow layer, and a drying seat arranged in the hollow layer. The drying seat is provided with a filling cavity for accommodating a drying agent and a drying hole communicating with the hollow layer. A heating element is arranged in the filling cavity, and an exchange air duct communicating with the filling cavity is formed in the curtain wall frame. The application can heat and regenerate the moisture-saturated drying agent through the heating element, and can introduce airflow through the exchange air duct to remove water vapor, so that the drying agent can be regenerated and reused on line, the hollow layer can be long-effectively maintained dry, and fogging and dewing can be prevented.

Description

Technical Field

[0001] This application relates to the field of building curtain wall technology, and in particular to an energy-saving building thermal insulation curtain wall. Background Technology

[0002] Building curtain walls, especially glass curtain walls, serve as the main external envelope of modern buildings, and their thermal performance directly affects the building's energy consumption and indoor environmental comfort. To effectively reduce building operating energy consumption and improve thermal insulation capabilities, incorporating a sealed hollow layer within the curtain wall structure has become the most common and core technical approach. This structure utilizes the low thermal conductivity of air or inert gases (such as argon) to form a static or slow-flowing gas interlayer between two layers of glass or other panels, thus creating a highly efficient thermal barrier and significantly reducing the overall heat transfer coefficient of the curtain wall.

[0003] However, this technology, which relies on hollow core insulation, has revealed an inherent and difficult-to-eradicate defect in long-term application: fogging and condensation inside the hollow core. The causes mainly involve the following aspects: First, the problem of sealing failure. The sealants forming the edges of the hollow core (such as butyl rubber and silicone sealant) inevitably age, harden, or crack after long-term exposure to ultraviolet radiation, temperature cycling stress, and wind and rain erosion, leading to the destruction of the initial airtightness of the hollow core. Second, water vapor penetration and diffusion. Driven by pressure or concentration differences, humid air from the outside slowly permeates into the hollow core through these microscopic sealing defects. Finally, condensation caused by temperature differences. Under diurnal or seasonal temperature variations, when the surface temperature of the inner panel of the curtain wall is lower than the dew point temperature of the air permeating into the hollow core, water vapor condenses into fog or dew on the cold inner surface.

[0004] Once this fogging phenomenon occurs, it will have a series of serious negative impacts on the curtain wall. Functionally, the condensed water droplets or fog film will significantly increase convection and heat conduction within the hollow layer, severely weakening its designed thermal insulation performance and leading to increased energy loss. Aesthetically and practically, continuous fogging will permanently affect the curtain wall's light transmittance and visual transparency, damaging the overall effect of the building facade. More seriously, the long-term accumulation of liquid water will accelerate the corrosion of internal metal components (such as spacers and desiccants) and may breed mold, ultimately endangering the structural safety and service life of the curtain wall.

[0005] In existing technologies, solutions to this problem mainly rely on improving the initial sealing level, filling the hollow layer edge frame with disposable desiccant to absorb initial moisture, or using a breather tube for limited pressure balancing. However, these methods are all passive protective measures and cannot cope with the inevitable aging process of the sealing material. Desiccants also have a limit to moisture saturation and failure, failing to fundamentally guarantee the dryness of the curtain wall throughout its entire lifespan. Therefore, how to innovatively design and proactively and effectively maintain the absolute dryness and stability of the hollow layer to prevent fogging has become a key technical challenge for improving the long-term reliability of energy-saving curtain walls and ensuring their performance throughout their entire lifespan. This is also the core problem that this invention aims to solve. Summary of the Invention

[0006] In order to improve the situation in the above-mentioned technology, this application provides an energy-saving building thermal insulation curtain wall.

[0007] This application provides a thermal insulation curtain wall for energy-saving buildings, which adopts the following technical solution: An energy-saving thermal insulation curtain wall for buildings includes a curtain wall frame, two opposing insulated glass panes disposed within the curtain wall frame, forming a hollow layer between the two insulated glass panes, a drying seat disposed within the hollow layer, a filling cavity for containing desiccant being formed within the drying seat, a drying hole being formed on the drying seat, the filling cavity and the hollow layer being connected to the drying hole, a heating element being disposed within the filling cavity, and an exchange air duct being formed on the curtain wall frame communicating with the filling cavity, the exchange air duct being provided with an interface for connecting to an external ventilation device or connecting to a building ventilation system.

[0008] By adopting the above technical solution, the desiccant in the drying seat and filling cavity of the hollow layer continuously absorbs moisture from the hollow layer through the drying holes to maintain its dryness and prevent condensation and fogging. When the desiccant becomes saturated and its efficiency decreases, or according to a preset intelligent control strategy, the heating element can be activated to heat and regenerate the desiccant, causing the adsorbed moisture inside to desorb. At the same time, the exchange air duct connected to the filling cavity is opened. The exchange air duct is connected to an external ventilation device or ventilation system through an interface. The external airflow flows through the exchange air duct and through the filling cavity, carrying the water vapor generated by evaporation out of the curtain wall, completing the regeneration of the desiccant. The regenerated desiccant can continuously adsorb moisture from the hollow layer again, forming a "adsorption-regeneration-re-adsorption" cycle. The moisture absorption capacity of the desiccant can be maintained without disassembling the curtain wall, ensuring the long-term dryness of the hollow layer. At the same time, the integrated design of the drying seat, heating element and exchange air duct does not damage the original hollow layer structure of the curtain wall, ensuring the initial thermal insulation performance of the curtain wall.

[0009] The above process, through the coordinated operation of the drying seat, heating element and exchange air duct, achieves active and long-term adsorption of water vapor in the hollow layer and regeneration of desiccant, thereby solving the problem of single-use desiccant in existing technologies that cannot cope with long-term water vapor infiltration leading to fogging in the hollow layer; at the same time, it ensures the stability of the thermal insulation performance of the curtain wall and extends the service life of the curtain wall.

[0010] Optionally, a regeneration tube is provided inside the filling cavity, and a regeneration hole is opened on the regeneration tube. The internal space of the filling cavity and the regeneration tube are both connected to the regeneration hole, and the heating element is disposed inside the regeneration tube.

[0011] By adopting the above technical solution, the heat generated by the heating element acts more evenly and directly on the desiccant surrounding the regeneration tube through the regeneration tube wall and regeneration holes in the form of radiation and thermal convection. This avoids the problem of overheating of the outer layer and insufficient regeneration of the inner layer caused by heat conduction only from the outside of the drying seat to the inside. It ensures that most of the desiccant in the filling cavity can be heated and desorbed simultaneously and efficiently, thereby shortening the regeneration time, reducing energy consumption, and extending the service life of the desiccant.

[0012] Optionally, the drying seat includes a surrounding plate disposed within the hollow layer and a bottom plate slidably disposed at the bottom of the surrounding plate. The filling cavity is opened within the surrounding plate. Drying holes are provided on both the surrounding plate and the bottom plate. A discharge port is provided at the bottom of the surrounding plate. The filling cavity and the exchange air duct are both connected to the discharge port. The bottom plate covers the discharge port. An elastic element is provided between the bottom plate and the exchange air duct. A feed inlet is provided at the top of the surrounding plate, and a feed channel communicating with the feed inlet is provided on the curtain wall frame.

[0013] By adopting the above technical solution, under normal operating conditions, the desiccant in the filling chamber exchanges moisture with the hollow layer and the exchange air duct through drying holes on the surrounding plate and the bottom plate, respectively, fulfilling its moisture absorption and regeneration functions. Over time, when the desiccant absorbs too much moisture, causing its efficiency to decline and making it difficult to efficiently recover through conventional heating regeneration, the desiccant's physical state changes—its weight increases significantly. This weight change directly translates into downward pressure acting on the bottom plate. When this downward pressure continuously exceeds the upward support force provided by the elastic element, the bottom plate will overcome the elastic force and begin to slide downwards, thus automatically opening the discharge port. This downward movement of the bottom plate, on the one hand, visually indicates that the desiccant is approaching saturation and needs replacement (equivalent to a "weight indicator"). On the other hand, it also directly prepares the physical environment for the replacement process. The desiccant in the filling chamber falls onto the bottom plate through the discharge port, then enters the exchange air duct through the bottom plate, and can be discharged through the interface. After this, maintenance personnel can introduce new desiccant through the feeding channel, and the new desiccant enters the filling space through the feeding port, thus completing the desiccant replacement. Throughout the entire process, the determination of maintenance needs (weight triggering) and the preparation of maintenance operations (opening formation) are automatically completed by the system's own status. Compared with traditional methods that rely on fixed cycles or manual inspections, this is more intelligent, direct, and reliable.

[0014] Optionally, a discharge seat is slidably disposed within the exchange air duct, and the discharge seat can enter and exit the exchange air duct through the interface; the elastic element is disposed between the discharge seat and the base plate, and an anti-drop plate is connected to the end of the discharge seat near the interface through a telescopic support plate; a discharge cavity for sliding of the base plate is formed between the peripheral wall of the discharge seat and the anti-drop plate; a mating hole is provided on the anti-drop plate, and the discharge cavity and the exchange air duct are both connected to the mating hole.

[0015] By adopting the above technical solution, the bottom plate at the discharge port at the bottom of the enclosure supports the desiccant in the filling cavity. After long-term use, the desiccant in the filling cavity will absorb moisture, causing its weight to increase. The heavier desiccant will exert downward pressure on the bottom plate. When the pressure exerted on the bottom plate exceeds the upward support force provided by the elastic element, the bottom plate will overcome the elastic force and begin to slide downward. The bottom plate slides within the discharge cavity. As the bottom plate slides down, the desiccant in the filling cavity will fall through the discharge port onto the bottom plate, and then into the discharge cavity. Then, the anti-drop plate is pulled through the interface of the air exchange duct. Since the anti-drop plate is connected to the unloading seat through the telescopic support plate, when the anti-drop plate is initially pulled, the anti-drop plate sliding towards the interface position will cause the telescopic support plate to unfold. As the anti-drop plate is pulled open, the desiccant in the unloading chamber will fall onto the telescopic support plate. When the telescopic support plate is pulled to the limit position, continuing to pull the anti-drop plate will pull the unloading seat. The unloading seat will cause the elastic element on it and the base plate to slide together towards the interface until they slide out from the interface, thereby allowing all the desiccant in the filling chamber to be emptied.

[0016] When new desiccant is added to the filling chamber through the feeding channel, the unloading seat and anti-drop plate are reset, the telescopic support plate retracts to its shortest stroke, the bottom plate closes at the unloading port, the hollow layer communicates with the filling chamber through the drying holes on the surrounding plate, the filling chamber communicates with the unloading chamber through the drying holes on the bottom plate, and the unloading chamber communicates with the exchange air duct through the mating hole. This ensures that the desiccant can smoothly dry the hollow layer. In addition, the unloading chamber formed by the surrounding wall of the unloading seat and the anti-drop plate also prevents the desiccant from randomly falling into the exchange air duct through the unloading port before unloading.

[0017] Optionally, a first magnetic block is provided on the unloading seat, a fixed sleeve is provided on the side of the base plate facing the unloading seat, a telescopic rod is provided between the fixed sleeve and the unloading seat, the telescopic rod can extend and retract vertically, and a second magnetic block is provided on the side of the fixed sleeve facing the unloading seat, the second magnetic block and the first magnetic block are magnetically attracted to each other.

[0018] By adopting the above technical solution, when the weight of the desiccant increases to a certain level, the base plate will slide downwards, and the telescopic rod will be compressed as the base plate slides down during this process. When the base plate is pressed down and slides to the set position, the second magnetic block set on the base plate and the first magnetic block set on the unloading seat attract each other, thereby establishing a relatively stable connection between the base plate and the unloading seat. This prevents the base plate from being driven upwards by the elastic element to close the unloading port due to the reduced weight of the desiccant it supports during the process of the desiccant being discharged from the unloading port into the unloading chamber, thus preventing the desiccant in the filling chamber from being completely emptied.

[0019] Optionally, the unloading seat has an isolation cavity and a magnetic suction hole communicating with the isolation cavity, through which the second magnetic block can enter the isolation cavity; the anti-drop plate is provided with an isolation plate, which is located in the isolation cavity and slidably connected to the isolation cavity.

[0020] By adopting the above technical solution, when the desiccant in the filling cavity is in normal drying operation (i.e., no desiccant discharge operation is performed), both the unloading seat and the anti-drop plate are located in the exchange air duct. The anti-drop plate is not pulled, and the isolation plate is located in the isolation cavity, physically blocking the first and second magnetic blocks. This effectively eliminates the magnetic attraction between them, allowing the downward movement of the base plate to be controlled only by the balance between the weight of the desiccant and the elastic force of the elastic element. This avoids insensitive downward movement or premature adsorption caused by magnetic interference. When the desiccant needs to be unloaded, the anti-drop plate is pulled, and the isolation plate is simultaneously pulled out of the isolation cavity. The magnetic attraction channel between the first and second magnetic blocks is opened, and when the base plate slides to the set position, the first and second magnetic blocks can be attracted together, allowing the base plate and the unloading seat to establish a connection. This ensures the purity and reliability of the weight sensing triggering mechanism.

[0021] Optionally, a cloth roller is rotatably arranged inside the curtain wall frame, a supporting cloth is wound on the cloth roller, a supporting cavity is opened on the unloading seat, the supporting cavity is located above the telescopic supporting plate, the supporting cloth passes through the supporting cavity and is connected to the anti-drop plate, and a reset component for driving the cloth roller to rotate and reset is provided inside the curtain wall frame.

[0022] By adopting the above technical solution, when desiccant unloading is required, pulling the anti-drop plate causes the support cloth connected to the anti-drop plate to be pulled out through the support cavity, and the support plate unfolds. Since the support cavity is located above the telescopic support plate, the pulled-out support cloth can also be positioned above the telescopic support plate. The support cloth replaces the telescopic support plate to support the desiccant. The desiccant in the filling cavity falls onto the support cloth through the discharge port. As the anti-drop plate is pulled out of the exchange air duct interface, the support cloth also carries the desiccant on it out of the exchange air duct, thus completing the desiccant unloading operation. After the desiccant unloading is completed, the unloading seat and anti-drop plate are reset. Under the action of the reset component, the cloth roller rotates to reset and rewind the support cloth for the next use.

[0023] The support cloth is soft and flexible. By using the support cloth instead of the telescopic support plate to support the desiccant, small desiccant particles can be prevented from getting stuck on the telescopic support plate, thus avoiding affecting the telescopic movement of the support plate.

[0024] Optionally, the fabric roller has an annular cavity, and the curtain wall frame has a fixed shaft located in the annular cavity and coaxial with the fabric roller. The reset component includes a torsion spring sleeved on the fixed shaft, with one end of the torsion spring connected to the fixed shaft and the other end connected to the fabric roller.

[0025] By adopting the above technical solution, the fixed shaft is fixed to the internal structure of the curtain wall frame, providing a static support core for the entire mechanism. The fabric roller is coaxially fitted onto the fixed shaft through its internal annular cavity, allowing it to rotate smoothly around the fixed shaft. The torsion spring is precisely installed in the annular space between the fixed shaft and the fabric roller, with one end connected to the stationary fixed shaft and the other end connected to the inner wall of the rotatable fabric roller. When unloading is performed and the supporting fabric needs to be pulled out, the applied tension drives the fabric roller to rotate. This rotational motion forces the torsion spring to undergo elastic deformation (tightening), thereby converting the tension energy into the elastic potential energy of the torsion spring and storing it. Once unloading is completed and the tension on the supporting fabric is released, the torsion spring, driven by its tendency to return to its original state, generates a reverse rotational torque. This torque directly and effectively drives the fabric roller to rotate in the opposite direction, thereby automatically and smoothly rewinding the unfolded supporting fabric back onto the fabric roller, preparing it for the next unloading operation. The entire reset process requires no additional power, utilizing the principle of mechanical energy storage. Furthermore, the structure is completely built into the cloth roller and frame, without occupying extra space. The reset action is reliable and impact-free.

[0026] Optionally, the unloading seat has a telescopic cavity, the telescopic support plate includes a first telescopic plate disposed in the telescopic cavity, the anti-drop plate is provided with a second telescopic plate, and the first telescopic plate and the second telescopic plate are connected by a telescopic sleeve plate.

[0027] By adopting the above technical solution, when desiccant unloading is required, pulling the anti-drop plate moves the second telescopic plate accordingly. The extension of the telescopic sleeve causes the first telescopic plate to extend from the telescopic cavity of the unloading seat. After the first telescopic plate extends from the telescopic cavity, its continued movement moves the unloading seat, thereby removing it from the interface of the exchange air duct. When desiccant unloading is not in progress, the nested structure formed by the second telescopic plate, the telescopic sleeve, and the first telescopic plate is located within the telescopic cavity. This nested structure occupies minimal space when fully retracted and provides a sufficiently long support platform when fully extended, ensuring that the deployed support plate effectively supports the falling desiccant before the unloading seat is fully pulled out, achieving a smooth transition and preventing spillage during the unloading process.

[0028] Optionally, the base plate is inclined from top to bottom along the direction close to the interface.

[0029] By adopting the above technical solution, the inclined base plate provides gravity assistance, thereby further promoting the smooth and complete discharge of the desiccant. During the desiccant unloading operation, the inclined base plate provides guidance for the desiccant on it, allowing it to be discharged smoothly through the discharge port.

[0030] In summary, this application includes at least one of the following beneficial technical effects: 1. Through the synergistic structure of "desiccant adsorption + heating regeneration + airflow dehumidification", active and long-term control of water vapor in the hollow layer is achieved, solving the problem of single-use desiccant in existing technologies that cannot cope with long-term water vapor penetration, avoiding fogging in the hollow layer and ensuring stable thermal insulation performance of the curtain wall. 2. The unloading port and feeding channel of the drying seat, together with the base plate driven by the elastic element, realize the intelligent triggering of desiccant replacement without disassembling the entire curtain wall structure, reducing maintenance costs and difficulties, and improving the convenience of operation and maintenance; 3. By using modular unloading seats, anti-fall plates, and support cloths that can be pulled out as a whole and set in the exchange air duct, the discharge, reception, and cleaning of desiccant are integrated into one unit, so that desiccant replacement can be completed safely, cleanly, and conveniently even in the narrow space of the curtain wall frame, which greatly reduces long-term maintenance costs and operational difficulties. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of an energy-saving building thermal insulation curtain wall according to an embodiment of this application; Figure 2 This is a front view of an embodiment of this application; Figure 3 yes Figure 2 Sectional view below section line AA; Figure 4 yes Figure 3 Enlarged view of section A; Figure 5 yes Figure 2 Sectional view below the BB section line; Figure 6 yes Figure 5 Enlarged view of section B; Figure 7 yes Figure 5 Enlarged view of section C; Figure 8 yes Figure 7 Enlarged view of section D; Figure 9 This is a schematic diagram of the cooperation between the unloading seat and the drying seat in the embodiments of this application; Figure 10 This is a schematic diagram of the cooperation between the unloading seat and the base plate in an embodiment of this application; Figure 11This is a schematic diagram illustrating the interaction between the unloading seat, telescopic rod, and fixing sleeve in an embodiment of this application. The magnetic suction hole of the fixing sleeve is shown for clarity. Figure 11 The structure of the spring sleeved on the telescopic rod and the base plate set on the fixed sleeve is concealed.

[0032] Explanation of reference numerals in the attached drawings: 1. Curtain wall frame; 2. Insulated glass; 3. Hollow layer; 4. Drying seat; 41. Enclosure panel; 42. Base plate; 5. Filling cavity; 6. Drying hole; 7. Heating element; 8. Regeneration pipe; 9. Exchange air duct; 10. Interface; 11. Feeding channel; 12. Unloading seat; 13. Elastic element; 131. Spring; 14. Telescopic support plate; 141. First telescopic plate; 142. Second telescopic plate; 143. Telescopic sleeve plate; 15. Anti-drop plate; 16. Unloading cavity; 17. First magnetic block; 18. Fixing sleeve; 19. Telescopic rod; 20. Magnetic suction hole; 21. Isolation cavity; 2 2. Insulating plate; 23. Cloth roller; 24. Supporting cloth; 25. Fixed shaft; 26. Reset component; 261. Torsion spring; 27. Supporting cavity; 29. ​​Air inlet channel; 30. Slide groove; 31. Sliding block; 32. Discharge port; 33. Feed port; 34. Regeneration hole; 35. Sealing cover; 36. Telescopic cavity; 37. Mating hole; 38. Pull rod; 39. Annular cavity; 40. Pressing table; 401. First unfolding groove; 402. First top block; 43. Second unfolding groove; 44. Second top block; 45. Third magnetic block; 46. Fourth magnetic block; 47. Support rod; 48. Top plate; 50. Third top block. Detailed Implementation

[0033] The following is in conjunction with the appendix Figure 1 - Appendix Figure 11 This application will be described in further detail.

[0034] This application discloses an energy-saving thermal insulation curtain wall for buildings. (See also...) Figures 1-11 The energy-saving building thermal insulation curtain wall includes a curtain wall frame 1, two opposing thermal insulation glass 2 are installed inside the curtain wall frame 1, a hollow layer 3 is formed between the two thermal insulation glass 2, a drying seat 4 is installed inside the hollow layer 3, a filling cavity 5 for containing desiccant is opened in the drying seat 4, a drying hole 6 is opened on the drying seat 4, the filling cavity 5 and the hollow layer 3 are both connected to the drying hole 6, a heating element 7 is installed inside the filling cavity 5, and an exchange air duct 9 is opened on the curtain wall frame 1 and connected to the filling cavity 5. The exchange air duct 9 is provided with an interface 10 for connecting to an external ventilation device or connecting to the building ventilation system.

[0035] The desiccant in the drying seat 4 and its filling cavity 5, located within the hollow layer 3, continuously absorbs moisture from the hollow layer 3 through the drying holes 6 to maintain its dryness and prevent condensation and fogging. When the desiccant becomes saturated and its effectiveness decreases, or according to a preset intelligent control strategy, the heating element 7 can be activated to heat and regenerate the desiccant, causing the adsorbed moisture to desorb. Simultaneously, the exchange air duct 9, connected to the filling cavity 5, opens. The exchange air duct 9 is connected to an external ventilation device or system through the interface 10. External airflow flows through the exchange air duct 9 and through the filling cavity 5, carrying the evaporated water vapor outside the curtain wall, thus completing the regeneration of the desiccant. The regenerated desiccant can then continuously adsorb moisture from the hollow layer 3 again.

[0036] Reference Figures 1-11 A regeneration tube 8 is installed inside the filling cavity 5. Multiple regeneration holes 34 are formed on the periphery of the regeneration tube 8. The internal spaces of both the filling cavity 5 and the regeneration tube 8 are connected to the regeneration holes 34. A heating element 7 is installed inside the regeneration tube 8. The heat generated by the heating element 7 acts more evenly and directly on the desiccant surrounding the regeneration tube 8 through the walls of the regeneration tube 8 and the regeneration holes 34 via radiation and thermal convection. This ensures that most of the desiccant in the filling cavity 5 can be heated and desorbed simultaneously and efficiently, shortening the regeneration time of the desiccant.

[0037] In this embodiment, the heating element 7 is selected as a PTC (positive temperature coefficient) heater, which features automatic temperature control and safety. The desiccant can be a molecular sieve or silica gel with high moisture absorption.

[0038] Reference Figures 1-11 The drying seat 4 includes a surrounding plate 41 disposed within the hollow layer 3 and a bottom plate 42 vertically slidably disposed at the bottom of the surrounding plate 41. The bottom plate 42 is inclined from top to bottom along the direction close to the interface 10. The regeneration pipe 8 is disposed within the surrounding plate 41. The exchange air duct 9 is opened at the bottom of the curtain wall frame 1 and extends to the bottom of the surrounding plate 41. The outer wall of the regeneration pipe 8 and the inner wall of the surrounding plate 41 form a filling cavity 5. Multiple drying holes 6 are opened on the periphery of the surrounding plate 41 and the bottom plate 42. A discharge port 32 is opened at the bottom of the surrounding plate 41. The filling cavity 5 and the exchange air duct 9 are connected through the discharge port 32 and the drying holes 6 on the bottom plate 42. The bottom plate 42 covers the discharge port 32. An elastic element 13 is disposed between the bottom plate 42 and the exchange air duct 9. A feed port 33 is opened at the top of the surrounding plate 41. A feed channel 11 communicating with the feed port 33 is opened on the curtain wall frame 1.

[0039] Under normal operating conditions, the desiccant in the filling cavity 5 exchanges moisture with the hollow layer 3 and the exchange air duct 9 through the drying holes 6 on the surrounding plate 41 and the bottom plate 42, respectively, fulfilling its moisture absorption and regeneration functions. Over time, when the desiccant absorbs too much moisture, causing its efficiency to decline and making it difficult to efficiently recover through conventional heating regeneration, the desiccant's physical state changes—its weight increases significantly. This weight change directly translates into downward pressure acting on the bottom plate 42. When this downward pressure continuously exceeds the upward support force provided by the elastic element 13, the bottom plate 42 will overcome the elastic force and begin to slide downwards, thereby automatically opening the discharge port 32. The desiccant in the filling cavity 5 falls onto the bottom plate 42 through the discharge port 32, and then enters the exchange air duct 9 through the bottom plate 42, from where it can be discharged through the interface 10. After this, maintenance personnel can introduce new desiccant through the feed channel 11, and the new desiccant enters the filling space through the feed port 33, thus completing the desiccant replacement.

[0040] Reference Figures 1-11 A discharge seat 12 is horizontally slidably installed inside the exchange air duct 9. The discharge seat 12 can enter and exit the exchange air duct 9 through the interface 10. An elastic element 13 is installed between the discharge seat 12 and the base plate 42. The end of the discharge seat 12 near the interface 10 is connected to an anti-drop plate 15 through a telescopic support plate 14. The peripheral wall of the discharge seat 12 and the anti-drop plate 15 form a discharge cavity 16 for the base plate 42 to slide. The anti-drop plate 15 is provided with a mating hole 37. The discharge cavity 16 and the exchange air duct 9 are both connected to the mating hole 37.

[0041] The base plate 42, located at the discharge port 32 at the bottom of the enclosure 41, supports the desiccant in the filling cavity 5. After prolonged use, the desiccant in the filling cavity 5 absorbs moisture, increasing its weight. This heavier desiccant exerts downward pressure on the base plate 42. When the pressure exerted on the base plate 42 exceeds the upward support force provided by the elastic element 13, the base plate 42 overcomes the elastic force and begins to slide downwards within the discharge cavity 16. As the base plate 42 slides downwards, the desiccant in the filling cavity 5 falls through the discharge port 32 onto the base plate 42, and then into the discharge cavity 16. Afterwards, the desiccant is exchanged through the interface of the air duct 9. Pulling the anti-drop plate 15 at point 10 causes the anti-drop plate 15 to be connected to the unloading seat 12 via the telescopic support plate 14. This results in the following: when the anti-drop plate 15 is initially pulled, the anti-drop plate 15, which slides towards the interface 10, will cause the telescopic support plate 14 to unfold. As the anti-drop plate 15 is pulled open, the desiccant in the unloading chamber 16 will fall onto the telescopic support plate 14. When the telescopic support plate 14 is pulled to its limit, continuing to pull the anti-drop plate 15 will pull the unloading seat 12. The unloading seat 12 will cause the elastic element 13 and the base plate 42 on it to slide together toward the interface 10 until they slide out of the interface 10, thereby allowing all the desiccant in the filling chamber 5 to be emptied. When new desiccant is filled into the filling cavity 5 through the feeding channel 11, the unloading seat 12 and the anti-drop plate 15 are reset, the telescopic support plate 14 is retracted to the shortest stroke, the bottom plate 42 is closed at the unloading port 32, the hollow layer 3 is connected to the filling cavity 5 through the drying hole 6 on the surrounding plate 41, the filling cavity 5 is connected to the unloading cavity 16 through the drying hole 6 on the bottom plate 42, and the unloading cavity 16 is connected to the exchange air duct 9 through the mating hole 37.

[0042] Reference Figures 1-11 An isolation cavity 21 is provided on the unloading seat 12, and an isolation plate 22 is provided on the anti-drop plate 15. The isolation plate 22 is located in the isolation cavity 21 and is slidably connected to the isolation cavity 21. A first magnetic block 17 is embedded in the isolation cavity 21, and a magnetic suction hole 20 communicating with the isolation cavity 21 is provided on the unloading seat 12. A fixing sleeve 18 is provided on the side of the bottom plate 42 facing the unloading seat 12, and a telescopic rod 19 is provided between the fixing sleeve 18 and the unloading seat 12. A second magnetic block (not shown in the figure) is provided on the side of the fixing sleeve 18 facing the unloading seat 12. The second magnetic block is magnetically attracted to the first magnetic block 17, and the second magnetic block can enter the isolation cavity 21 through the magnetic suction hole 20 and fit with the first magnetic block 17.

[0043] When the desiccant in the filling cavity 5 is in normal drying operation, that is, when the desiccant is not discharged, the unloading seat 12 and the anti-drop plate 15 are both located in the exchange air duct 9. The anti-drop plate 15 is not pulled. The isolation plate 22 is located in the isolation cavity 21, which physically blocks the first magnetic block 17 and the second magnetic block, effectively eliminating the magnetic attraction between the two. When desiccant unloading is required, the anti-drop plate 15 is pulled, and the isolation plate 22 is simultaneously pulled out of the isolation cavity 21. The magnetic attraction channel between the first magnetic block 17 and the second magnetic block is opened. When the bottom plate 42 slides down to the set position, the second magnetic block on the bottom plate 42 and the first magnetic block 17 on the unloading seat 12 attract each other. The second magnetic block enters the isolation cavity 21 through the magnetic attraction hole 20. The second magnetic block is thus attached to the first magnetic block 17. The bottom plate 42 thus establishes a relatively stable connection with the unloading seat 12. This prevents the bottom plate 42 from being driven upward by the elastic element 13 to close the unloading port 32 due to the reduced weight of the desiccant supported on it during the process of the desiccant being discharged from the unloading port 32 to the unloading cavity 16, which would result in the desiccant in the filling cavity 5 not being completely emptied.

[0044] Reference Figures 1-11 The elastic element 13 includes a spring 131 sleeved on the fixed sleeve 18 and the telescopic rod 19. The elastic extension direction of the spring 131 is vertical. One end of the spring 131 is fixed to the unloading seat 12 and the other end is fixed to the bottom of the base plate 42. The elastic force of the spring 131 provides elastic support for the base plate 42. By setting the telescopic rod 19 inside the spring 131, the stability of the spring 131 during elastic extension is further improved, ensuring the sliding direction of the base plate 42.

[0045] The spring constant of spring 131 is calculated and selected such that when the total weight of the desiccant in the filling cavity 5 increases by approximately 15%-25% due to moisture absorption (for example, for common molecular sieve desiccants, the moisture absorption rate exceeds 15% of its own weight), the resulting downward pressure is just enough to overcome the preload of spring 131, triggering the bottom plate 42 to begin sliding down. The set position for the sliding of the bottom plate 42 can be determined by a mechanical limit or position sensor within the unloading seat 12.

[0046] Reference Figures 1-11 A fabric roller 23 is rotatably mounted inside the curtain wall frame 1. A support fabric 24 is wound around the fabric roller 23. A support cavity 27 is opened on the unloading seat 12, located below the isolation cavity 21. The support cavity 27 is located above the telescopic support plate 14. The support fabric 24 passes through the support cavity 27 and is connected to the anti-drop plate 15. A reset component 26 is provided inside the curtain wall frame 1 for driving the fabric roller 23 to rotate and reset. An annular cavity 39 is opened inside the fabric roller 23. A fixed shaft 25 is provided inside the curtain wall frame 1. The fixed shaft 25 is located inside the annular cavity 39 and is coaxial with the fabric roller 23. The reset component 26 includes a torsion spring 261 sleeved on the fixed shaft 25. One end of the torsion spring 261 is connected to the fixed shaft 25, and the other end is connected to the fabric roller 23.

[0047] When desiccant unloading is required, the anti-drop plate 15 is pulled, and the support cloth 24 connected to the anti-drop plate 15 is pulled out through the support cavity 27. The applied tension drives the cloth roller 23 to rotate. This rotational motion forces the torsion spring 261 to undergo elastic deformation (tightening), thereby converting the tension energy into the elastic potential energy of the torsion spring 261 and storing it. The support plate unfolds, and since the support cavity 27 is located above the telescopic support plate 14, the pulled-out support cloth 24 can also be located above the telescopic support plate 14. The support cloth 24 replaces the telescopic support plate 14 to support the desiccant. The desiccant in the filling cavity 5 falls onto the support cloth 24 through the discharge port 32. As the anti-drop plate 15 is pulled out of the interface 10 of the exchange air duct 9, the support cloth 24 will also carry the desiccant on it out of the exchange air duct 9, thereby performing the desiccant unloading operation. After the desiccant is unloaded, the unloading seat 12 and the anti-drop plate 15 are reset. The torsion spring 261, driven by the tendency to return to its original state, generates a reverse rotational torque. This torque directly and effectively drives the cloth roller 23 to rotate in the opposite direction, thereby automatically and smoothly rewinding the unfolded support cloth 24 back onto the cloth roller 23, preparing for the next unloading operation.

[0048] In the embodiments of this application, reference is made to Figures 1-11 Two opposing fabric pressing platforms 40 are provided inside the curtain wall frame 1. The two fabric pressing platforms 40 are located between the unloading seat 12 and the fabric roller 23. The two fabric pressing platforms 40 are arranged opposite each other, and an opening for the fabric 24 to enter and exit is formed between the two fabric pressing platforms 40.

[0049] Reference Figures 1-11 The unloading seat 12 has a telescopic cavity 36. The telescopic support plate 14 includes a first telescopic plate 141 disposed in the telescopic cavity 36. The anti-drop plate 15 is provided with a second telescopic plate 142. The first telescopic plate 141 and the second telescopic plate 142 are connected by a telescopic sleeve plate 143.

[0050] When desiccant unloading is required, pulling the anti-drop plate 15 moves the second telescopic plate 142. The extension of the telescopic sleeve 143 causes the first telescopic plate 141 to extend from the telescopic cavity 36 of the unloading seat 12. After the first telescopic plate 141 extends from the telescopic cavity 36, its continued movement moves the unloading seat 12, thereby removing it from the interface 10 of the exchange duct 9. When desiccant unloading is not in progress, the nested structure formed by the second telescopic plate 142, the telescopic sleeve 143, and the first telescopic plate 141 is located within the telescopic cavity 36. This nested structure occupies minimal space when fully retracted and provides a sufficiently long support platform when fully extended, ensuring that the deployed support plate effectively supports the falling desiccant before the unloading seat 12 is fully pulled out.

[0051] Reference Figures 1-11 The first telescopic plate 141 has a cavity, in which the telescopic sleeve plate 143 and the second telescopic plate 142 can be housed. The first telescopic plate 141 has a first expansion groove 401 that communicates with the cavity. The telescopic sleeve plate 143 is provided with a first top block 402, which is located in the first expansion groove 401 and slides in cooperation with it. When the first top block 402 slides to the end of the first expansion groove 401, it abuts against the groove wall of the first expansion groove 401. The continued sliding of the first top block 402 will pull the first telescopic plate 141 to slide. Similarly, a second expansion slot 43 communicating with the internal space of the telescopic sleeve 143 is provided inside the sleeve. A second top block 44 is provided on the second telescopic plate 142. The second top block 44 is located in the second expansion slot 43 and slides in cooperation with the second expansion slot 43. When the second top block 44 slides to the end of the second expansion slot 43, the second top block 44 abuts against the slot wall of the second expansion slot 43. The continued sliding of the second top block 44 will pull the telescopic sleeve 143 to slide, and the retractable support plate will unfold layer by layer. A third top block 50 is provided on the first telescopic plate 141. When the third top block 50 slides to the end of the telescopic cavity 36, the second top block 44 abuts against the end wall of the telescopic cavity 36. The continued sliding of the third top block 50 will pull the unloading seat 12 to slide.

[0052] In this embodiment of the application, for the purpose of intuitive demonstration, the telescopic sleeve 143 is provided with a second telescopic plate 142. The plate surface formed by the unfolding of the telescopic sleeve 143 and the first telescopic plate 141 can support the desiccant in the filling cavity 5. In actual application, the number of telescopic sleeves 143 can be set to multiple according to the capacity of the desiccant in the filling cavity 5. Multiple telescopic sleeves 143 are nested together (similar to the principle of a telescope), so that the plate surface formed by the unfolding of the second telescopic plate 142, multiple telescopic sleeves 143 and the first telescopic plate 141 can fully support the desiccant in the filling cavity 5.

[0053] To prevent the telescopic support plate 14 and support cloth 24 from being pulled when the anti-fall plate 15 is pulled, and the unloading seat 12 is pulled first and moves unexpectedly, an auxiliary connector is provided on the curtain wall frame 1 to connect with the unloading seat 12.

[0054] In the embodiments of this application, reference is made to Figures 1-11The auxiliary connecting parts include a third magnetic block 45 disposed in the exchange air duct 9 and a fourth magnetic block 46 disposed on the unloading seat 12. The third magnetic block 45 and the fourth magnetic block 46 are magnetically attracted to each other. When the desiccant is not unloaded, that is, when the anti-drop plate 15 is not pulled, the third magnetic block 45 and the fourth magnetic block 46 are attached to each other, so that the unloading seat 12 can be placed relatively stably in the exchange air duct 9. When the anti-drop plate 15 is pulled, with the cooperation of the third magnetic block 45 and the fourth magnetic block 46, the unloading seat 12 will be attracted to the exchange air duct 9, thereby ensuring that the telescopic support plate 14 and the support cloth 24 can be pulled first.

[0055] In other embodiments, the auxiliary connector is also selected as a spring clip set in the exchange air duct 9 or on the unloading seat 12. The unloading seat 12 or the exchange air duct 9 has a slot that cooperates with the spring clip and allows the spring clip to be engaged. When the desiccant is not unloaded, that is, when the anti-drop plate 15 is not pulled, the spring clip is located in the slot, thereby allowing the unloading seat 12 to be placed relatively stably in the exchange air duct 9. When the anti-drop plate 15 is pulled, the telescopic support plate 14 and the support cloth 24 are pulled to a certain position, the unloading seat 12 is pulled, the spring clip pops out of the slot, and the unloading seat 12 can be moved subsequently.

[0056] In the embodiments of this application, reference is made to Figures 1-11 A groove 30 is provided along the length of the air exchange duct 9. A slider 31 is provided at the bottom of the anti-drop plate 15. The slider 31 is located in the groove 30 and is slidably connected to the groove 30. A pull rod 38 is provided at one end of the anti-drop plate 15 near the interface 10, so that the operator can take out the anti-drop plate 15 by pulling the pull rod 38.

[0057] In the embodiments of this application, reference is made to Figures 1-11 An air intake channel 29 communicating with the hollow layer 3 is provided on the curtain wall frame 1. The air intake channel 29 is used to replenish the inert gas in the hollow layer 3. When the air intake channel 29 and the feed channel 11 are not in use, the corresponding channels can be closed by valves (not shown in the figure). A sealing cover 35 is provided at the interface 10 of the exchange air duct 9. A sealing gasket is provided on the side of the sealing cover 35 facing the interface 10. The sealing cover 35 is fixed to the curtain wall frame 1 by screws to close the interface 10. The sealing gasket is located between the sealing cover 35 and the curtain wall frame 1 to improve the sealing performance at the interface 10.

[0058] In the embodiments of this application, reference is made to Figures 1-11A support rod 47 is provided between the regeneration tube 8 and the surrounding plate 41 to support the installation of the regeneration tube 8; a top plate 48 with an arc-shaped cross-section is provided at the top of the regeneration tube 8. When the desiccant is replenished through the feed channel 11, the desiccant will fall through the top plate 48. The arc-shaped cross-section of the top plate 48 can prevent the desiccant from accumulating on the top plate 48; the bottom of the regeneration tube 8 is closed, and the bottom of the regeneration tube 8 is provided with a slope that fits against the bottom plate 42.

[0059] The implementation principle of an energy-saving thermal insulation curtain wall for buildings according to this application embodiment is as follows: Under normal conditions, the desiccant in the drying seat 4 continuously adsorbs water vapor in the hollow layer 3 through the drying hole 6, keeping the hollow layer 3 dry and preventing fogging; when the desiccant is saturated with moisture, the heating element 7 is activated, and in conjunction with the ventilation device connected to the exchange air duct 9, the water vapor desorbed by the desiccant is discharged, completing regeneration; when the desiccant has been used for a long time and its regeneration performance decreases, the increased weight triggers the bottom plate 42 to slide down and open the discharge port 32, discharging the old desiccant through the interface 10, and then filling in the new desiccant through the feeding channel 11, realizing convenient replacement; the whole process, through the synergy of active regeneration and convenient replacement, maintains the dryness of the hollow layer 3 for a long time, ensures the thermal insulation performance of the curtain wall, and extends its service life.

[0060] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An energy-saving building insulation curtain wall, characterized in that: The system includes a curtain wall frame (1), within which two opposing heat-insulating glass panes (2) are arranged, forming a hollow layer (3) between the two heat-insulating glass panes (2). A drying seat (4) is arranged within the hollow layer (3), and a filling cavity (5) for containing desiccant is provided within the drying seat (4). A drying hole (6) is provided on the drying seat (4), and both the filling cavity (5) and the hollow layer (3) are connected to the drying hole (6). A heating element (7) is provided within the filling cavity (5), and an exchange air duct (9) communicating with the filling cavity (5) is provided on the curtain wall frame (1). The exchange air duct (9) is provided with an interface (10) for connecting to an external ventilation device or connecting to a building ventilation system. The drying seat (4) includes a... A partition plate (41) is placed inside the hollow layer (3) and a bottom plate (42) is slidably disposed at the bottom of the partition plate (41). The filling cavity (5) is opened inside the partition plate (41). Drying holes (6) are opened on both the partition plate (41) and the bottom plate (42). A discharge port (32) is opened at the bottom of the partition plate (41). The filling cavity (5) and the exchange air duct (9) are both connected to the discharge port (32). The bottom plate (42) covers the discharge port (32). An elastic element (13) is provided between the bottom plate (42) and the exchange air duct (9). A feed port (33) is opened at the top of the partition plate (41). A feed channel (11) connected to the feed port (33) is opened on the curtain wall frame (1).

2. The energy-saving building thermal insulation curtain wall according to claim 1, characterized in that: The filling cavity (5) is provided with a regeneration tube (8), and the regeneration tube (8) is provided with a regeneration hole (34). The internal space of the filling cavity (5) and the regeneration tube (8) are both connected to the regeneration hole (34). The heating element (7) is provided in the regeneration tube (8).

3. The energy-saving building thermal insulation curtain wall according to claim 1, characterized in that: A discharge seat (12) is slidably disposed inside the exchange air duct (9). The discharge seat (12) can enter and exit the exchange air duct (9) through the interface (10). The elastic element (13) is disposed between the discharge seat (12) and the base plate (42). The end of the discharge seat (12) near the interface (10) is connected to an anti-drop plate (15) through a telescopic support plate (14). The peripheral wall of the discharge seat (12) and the anti-drop plate (15) form a discharge cavity (16) for the base plate (42) to slide. The anti-drop plate (15) is provided with a mating hole (37). The discharge cavity (16) and the exchange air duct (9) are both connected to the mating hole (37).

4. The energy-saving building thermal insulation curtain wall according to claim 3, characterized in that: The unloading seat (12) is provided with a first magnetic block (17), and the bottom plate (42) is provided with a fixing sleeve (18) on the side facing the unloading seat (12). A telescopic rod (19) is provided between the fixing sleeve (18) and the unloading seat (12). The telescopic rod (19) can extend and retract vertically. The fixing sleeve (18) is provided with a second magnetic block on the side facing the unloading seat (12). The second magnetic block is magnetically attracted to the first magnetic block (17).

5. The energy-saving building thermal insulation curtain wall according to claim 4, characterized in that: The unloading seat (12) is provided with an isolation cavity (21) and a magnetic suction hole (20) communicating with the isolation cavity (21). The second magnetic block can enter the isolation cavity (21) through the magnetic suction hole (20). The anti-drop plate (15) is provided with an isolation plate (22), which is located in the isolation cavity (21) and is slidably connected to the isolation cavity (21).

6. The energy-saving building thermal insulation curtain wall according to claim 3, characterized in that: A cloth roller (23) is rotatably arranged inside the curtain wall frame (1). A support cloth (24) is wound on the cloth roller (23). A support cavity (27) is opened on the unloading seat (12). The support cavity (27) is located above the telescopic support plate (14). The support cloth (24) passes through the support cavity (27) and is connected to the anti-drop plate (15). A reset member (26) for driving the cloth roller (23) to rotate and reset is provided inside the curtain wall frame (1).

7. The energy-saving building thermal insulation curtain wall according to claim 6, characterized in that: The fabric roller (23) has an annular cavity (39) inside, and a fixed shaft (25) is provided inside the curtain wall frame (1). The fixed shaft (25) is located inside the annular cavity (39) and is coaxial with the fabric roller (23). The reset member (26) includes a torsion spring (261) sleeved on the fixed shaft (25). One end of the torsion spring (261) is connected to the fixed shaft (25), and the other end is connected to the fabric roller (23).

8. The energy-saving building thermal insulation curtain wall according to claim 3, characterized in that: The unloading seat (12) has a telescopic cavity (36) inside. The telescopic support plate (14) includes a first telescopic plate (141) disposed in the telescopic cavity (36). The anti-drop plate (15) is provided with a second telescopic plate (142). The first telescopic plate (141) and the second telescopic plate (142) are connected by a telescopic sleeve plate (143).

9. The energy-saving building thermal insulation curtain wall according to claim 1, characterized in that: The base plate (42) is inclined from top to bottom along the direction close to the interface (10).

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