A 3D printing aerogel insulation board assembly structure and an assembly method thereof

Abstract

The application discloses a kind of based on 3D printing aerogel insulation board assembly structure and its assembly method, belong to building insulation technical field, including protective plate group and its inside aerogel insulation layer, outer ventilation cavity, cavity has multiple unit cavities formed by baffle, fan of top ventilation assembly can exhaust gas and generate negative pressure, each unit cavity is equipped with air inlet component, including ventilation tube, plugging column etc., when negative pressure increases, it can be automatically sealed, also be provided with internal circulation heat preservation system, for introducing indoor air temperature control, the application is realized the differential heat management of wall area by unit cavity zoning, solve uneven sunshine and lead to local overheating problem, based on negative pressure principle automatically seal air inlet, active moisture-proof, prevent condensation hazard, airflow drive disturbance blade rotates, break heat and humidity gathering blind area, ensure complete exchange, when extremely high temperature, internal circulation mode can be started, introduce indoor low-temperature air for cavity cooling and isolate external heat source, reduce night condensation risk, to insulation layer protection.

Description

Technical Field

[0001] This invention relates to the field of building insulation technology, and in particular to an assembly structure and assembly method based on 3D printed aerogel insulation panels. Background Technology

[0002] With increasing global emphasis on energy conservation, emission reduction, and sustainable development, the construction industry is actively transforming towards green, low-carbon, and industrialized practices. Against this backdrop, prefabricated buildings, due to their advantages such as high construction efficiency, low resource consumption, and minimal environmental pollution, have become a key area for innovation and development in the industry. Among these, the "3D customized panel wall green building" system, as an advanced prefabricated building technology, utilizes prefabricated panels composite with lightweight steel structures and high-performance insulation materials. This enables rapid dry construction, significantly reducing cement usage and completely eliminating clay bricks, playing a crucial role in saving land resources, reducing energy consumption, and controlling dust pollution.

[0003] However, despite the significant achievements of the existing system, challenges remain in further improving energy efficiency and adapting to complex climatic environments. In particular, in high-temperature and high-humidity regions, the key to ensuring long-term thermal insulation performance and maintaining a healthy indoor environment lies in how to efficiently expel solar radiation heat from the cavity of the building envelope and prevent condensation caused by excessive day-night temperature differences. Traditional wall heat dissipation methods are relatively passive, and hot air easily accumulates in the cavity, forming thermal bridges. Furthermore, it is difficult to effectively expel humid gases, posing risks of insulation materials becoming damp, experiencing performance degradation, and developing mold. Summary of the Invention

[0004] The purpose of this invention is to solve the problems of existing 3D customized panel wall green building systems, which are difficult to efficiently dissipate solar radiation heat from the cavity of the building envelope and prevent internal condensation in high-temperature and high-humidity areas, as well as the passive heat dissipation of traditional walls and the risk of insulation materials getting damp. The invention proposes an assembly structure and assembly method based on 3D printed aerogel insulation panels.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An assembly structure based on 3D printed aerogel insulation board includes a protective board assembly, with an upper support plate on the top of the protective board assembly, and an aerogel insulation layer and an external ventilation cavity inside the protective board assembly.

[0007] The top of the upper support plate is equipped with a ventilation assembly. Inside the outer ventilation cavity, there is a partition that divides the outer ventilation cavity into multiple unit cavities. The ventilation assembly is connected to multiple unit cavities. The fan in the ventilation assembly is used to exhaust the gas in the unit cavity and generate negative pressure.

[0008] The protective panel assembly is equipped with an air inlet component that corresponds to a separate unit cavity, allowing external gas to enter;

[0009] The air inlet assembly comprises a ventilation part, the ventilation part comprises a ventilation cylinder, a blocking column, a corrugated pipe and a butt joint plate, the butt joint plate is provided with an air inlet hole for sealing butt joint of the blocking column, and the ventilation cylinder is closed when negative pressure in the unit cavity increases;

[0010] The inner circulation heat preservation system is provided in the protection plate group, the inner circulation heat preservation system comprises an air guide pipe for communication between the unit cavity and the indoor, and an output end of the fan is connected back to the air guide pipe through a circulation pipeline; valves are arranged on the air guide pipe and the circulation pipeline; the inner circulation heat preservation system is used for connecting the indoor with the outer ventilation cavity, and low-temperature gas in the indoor is sucked to the unit cavity by the fan to control the temperature.

[0011] In some embodiments, the valve group comprises a first valve arranged on the air guide pipe, a second valve arranged on the output end of the fan, and a third valve arranged between the circulation pipeline and the air guide pipe.

[0012] In some embodiments, the air inlet assembly further comprises a turbulence part arranged on the ventilation cylinder, the turbulence part comprises an impeller rotatably connected in the ventilation cylinder, a rotating plate and a turbulence vane are connected to the middle part of the impeller, external airflow is sucked by the fan to pass through the ventilation cylinder and the impeller, the impeller and the turbulence vane are driven to rotate, and the turbulence vane disturbs the gas flowing into the unit cavity.

[0013] In some embodiments, a movable groove is arranged on the inner side of the ventilation cylinder, a spring is arranged in the movable groove, the outer side of the impeller is connected with the spring through a bearing, a pressing plate is arranged on the inner side of the butt joint plate, the pressing plate corresponds to the outer ring of the bearing, and when the air inlet hole is butt jointed with the blocking column, the pressing plate approaches the outer ring of the bearing and pushes the turbulence vane inward.

[0014] In some embodiments, a water absorption layer is arranged on the turbulence vane, and the water absorption layer is used for absorbing moisture in the unit cavity; the water absorption layer further comprises a cotton layer arranged on the outer side of the turbulence vane; a guide vane is arranged on one side of the partition plate and is arranged obliquely downward, a plurality of guide vanes are arranged, and the guide vanes are used for gathering condensed water droplets downward; an oblique gap is arranged on the side of the guide vane away from the partition plate, and the oblique gap is used for guiding the condensed water droplets to gather at the bottom end of the guide vane.

[0015] A swing groove is arranged on one side of the partition plate, one end of the guide vane is arranged in the swing groove through an elastic joint, a synchronization part is arranged on the plurality of guide vanes, and the synchronization part is used for synchronously swinging the plurality of guide vanes up and down.

[0016] In some embodiments, the end of the air guide pipe corresponding to the middle region of the turbulence vane is connected with the unit cavity, and when airflow flows upward through the air guide pipe, the turbulence vane is driven to rotate, the turbulence vane scrapes the sidewall of the aerogel heat preservation layer, and at the same time, the turbulence vane contacts one end of the guide vane and absorbs the gathered water droplets.

[0017] In some embodiments, after the plugging column is connected with the air inlet hole, the end of the disturbance vane away from the rotating plate can contact the bottom end of the guide vane, for swinging the guide vane up and down during rotation, for removing water droplets on the side wall of the aerogel thermal insulation layer and the partition plate.

[0018] In some embodiments, after the plugging column is connected with the air inlet hole, the friction between the plugging column and the air inlet hole is greater than the resilience of the spring and the steel wire spring in the bellows, for keeping the disturbance vane close to the aerogel thermal insulation layer.

[0019] In some embodiments, a temperature sensor can be preset in the outer ventilation cavity, and an air humidity sensor is arranged in the inner part of the ventilation cylinder; the ventilation assembly comprises branch pipes and a total air outlet pipe, the branch pipes are communicated with the outer ventilation cavity, and the fan is arranged on the total air outlet pipe; the fan is a bidirectional fan.

[0020] The application also provides an assembly method of the 3D printing aerogel thermal insulation panel assembly structure, comprising the following steps:

[0021] S1, providing an aerogel thermal insulation layer integrally formed by a 3D printing technology, having a predetermined shape and strength, a mounting plate arranged on the top of the bottom plate for mounting and supporting the aerogel thermal insulation layer, a groove for constituting a unit cavity and a ventilation opening for connecting and mounting the air inlet assembly on the protection plate group, an interface for mounting the air guide pipe prearranged on the mounting bottom plate, and a mounting base formed in the outer ventilation cavity;

[0022] S2, mounting the 3D printing aerogel thermal insulation layer on the mounting base, mounting the partition plate in the groove prearranged on the surface of the aerogel thermal insulation layer, so as to form a plurality of independent unit cavities together with the aerogel thermal insulation layer;

[0023] S3, mounting the support plate and the ventilation assembly on the top of the unit cavity, and sealingly connecting each branch pipe with the outlet of the corresponding unit cavity; connecting the air guide pipe with the interface prearranged on the mounting bottom plate at the bottom of the unit cavity, and leading to the indoor; connecting the circulation pipeline with the corresponding valves of the fan output end and the air guide pipe, to constitute an internal circulation loop;

[0024] S4, fixedly mounting the ventilation part of the air inlet assembly at the ventilation opening, ensuring that the ventilation cylinder is communicated with the unit cavity, mounting the impeller of the disturbance part in the ventilation cylinder, and then mounting the bellows and the connecting plate;

[0025] S5, mounting the outer part of the protection plate group to close the entire assembly structure, connecting the control lines of the fan, the sensor and all valves, and completing the assembly of the entire system.

[0026] Compared with the prior art, the application provides a 3D printing aerogel thermal insulation panel assembly structure and an assembly method thereof, having the following beneficial effects.

[0027] 1. This invention sets up a partition in the external ventilation cavity to divide the external ventilation cavity into multiple independent unit cavities. Each unit cavity has an independent air inlet, air outlet and solenoid valve control. Combined with the temperature sensor in the unit cavity, the system can monitor and independently control the ventilation and heat dissipation of the high temperature area in real time, realize differentiated and precise thermal management of different areas of the wall, and effectively solve the problem of local overheating and heat accumulation caused by uneven sunlight in the overall cavity, thereby greatly improving heat dissipation efficiency and uniformity.

[0028] 2. Based on the principle of negative pressure, this invention can seal the air intake component under the drive of the fan. When the humidity sensor detects that the humidity of the incoming air exceeds the threshold, the fan power is increased to generate a strong negative pressure, which drives the docking plate and the sealing column to seal, thereby cutting off the entry of humid air and realizing the active moisture-proof function. Under this mechanism, it can actively prevent moisture from entering in rainy or high-humidity environments, avoiding problems such as performance degradation, mold growth and structural corrosion of the insulation material caused by condensation in the cavity.

[0029] 3. In this invention, when gas enters the external ventilation cavity through the ventilation duct, the airflow passes through the impeller, which drives the agitator blades to rotate over a large area within the unit cavity, stirring the internal gas. This prevents high-temperature and high-humidity gas from accumulating locally within the unit cavity, making the heat and moisture exchange within the cavity more thorough and complete.

[0030] 4. This invention monitors the external ambient temperature in real time. When the external ambient temperature is too high and conventional ventilation and heat dissipation fail, the system can activate the internal circulation mode. By introducing lower-temperature indoor air, the wall cavity is forcibly cooled, and then the unit cavity is sealed to prevent the entry of high-temperature external gas. Instead, the low indoor temperature is used to delay the temperature rise inside the unit cavity. In this mode, it can adapt to seasons with large temperature differences between day and night. By reducing the temperature difference between the unit cavity and the external environment, the risk of condensation inside the unit cavity at night is reduced, providing corresponding protection for the aerogel insulation layer.

[0031] 5. When the air inlet is sealed, one side of the disturbance blade is attached to the side wall of the aerogel insulation layer. When the upward airflow pushes the disturbance blade to rotate, it scrapes and absorbs the water droplets on the side wall of the aerogel insulation layer. The wetted water-absorbing layer is automatically evaporated and dried by solar energy the next day to restore its moisture absorption capacity, thereby improving the reliability and durability of the system's continuous operation.

[0032] Other advantages, objectives and features of the invention will be set forth in part in the description which follows; and in part will be apparent to those skilled in the art upon examination of the following description; or may be learned from practice of the invention. Attached Figure Description

[0033] Figure 1Structure diagram of the assembly of the protective plate group and aerogel thermal insulation layer of the present application.

[0034] Figure 2 Structure diagram of the outer ventilation cavity and inner cavity of the present application.

[0035] Figure 3 Structure diagram of the ventilation assembly of the present application.

[0036] Figure 4 Structure diagram of the unit cavity of the present application.

[0037] Figure 5 Structure diagram of the air inlet assembly of the present application.

[0038] Figure 6 Structure diagram of the spoiler of the present application.

[0039] Figure 7 Structure diagram of the Figure 6 of the present application in the enlarged view of area A.

[0040] Figure 8 Structure diagram of the inside of the bellows of the present application.

[0041] Figure 9 Structure diagram of the connection of the ventilation part and the spoiler of the present application.

[0042] Figure 10 Structure diagram of the inner circulation thermal insulation system of the present application.

[0043] Figure 11 Structure diagram of the connection of the circulation pipes of the present application.

[0044] Figure 12 Structure diagram of the connection of the impeller and the ventilation cylinder of the present application.

[0045] Figure 13 Structure diagram of the Figure 12 of the present application in the enlarged view of area B.

[0046] Figure 14 Structure diagram of the flow guide sheet of the present application.

[0047] Figure 15 Structure diagram of the connection of the disturbance blade and the flow guide sheet of the present application.

[0048] Figure 16 Structure diagram of the synchronizing part of the present application.

[0049] Figure 17 Structure diagram of the Figure 16 of the present application in the enlarged view of area C.

[0050] Figure 18Structure diagram of the sliding connection of the synchronizing rod and the guide vane of the application.

[0051] In the figure:

[0052] 1, protective plate group; 101, bottom plate; 102, mounting plate; 2, aerogel thermal insulation layer; 3, outer ventilation cavity; 4, inner cavity; 5, partition plate; 501, swing groove; 502, guide vane; 5021, oblique notch; 503, elastic joint; 504, synchronizing part; 5041, synchronizing rod; 5042, sliding groove; 5043, steel ball; 505, partition plate; 6, air inlet assembly; 7, ventilation part; 701, ventilation cylinder; 7011, movable groove; 7012, spring; 702, plugging column; 703, corrugated pipe; 704, butt joint plate; 7041, air inlet hole; 7042, pressing plate; 8, turbulence part; 801, impeller; 802, connecting rod; 803, rotating plate; 804, turbulence blade; 8041, cotton layer; 9, upper support plate; 10, ventilation assembly; 1001, branch pipe; 1002, total air outlet pipe; 1003, electromagnetic valve; 1004, fan; 11, inner circulation thermal insulation system; 1101, air guide pipe; 11011, first valve; 1102, circulation pipeline; 1103, second valve; 1104, third valve; DETAILED DESCRIPTION

[0053] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application.

[0054] With reference to Figures 1-4 A 3D printing aerogel thermal insulation plate assembly structure and an assembly method thereof, comprising a protective plate group 1, wherein the interior of the protective plate group 1 is provided with an aerogel thermal insulation layer 2, the interior of the protective plate group 1 is provided with a cavity, the top of the protective plate group 1 is provided with an upper support plate 9, the top of the upper support plate 9 is provided with a ventilation assembly 10, the ventilation assembly 10 comprises a fan 1004, and the negative pressure of the fan 1004 in operation is used to discharge the gas in the cavity to the outside, the bottom of the protective plate group 1 is provided with a bottom plate 101, the aerogel thermal insulation layer 2 divides the cavity into an inner cavity 4 and an outer ventilation cavity 3, the outer ventilation cavity 3 is used to cooperate with the ventilation assembly 10 to exchange the inner and outer gas and discharge the heat of solar energy in the outer ventilation cavity 3.

[0055] Optionally, the inner cavity 4 is used as a hidden channel of a line or a pipeline and can be used for maintenance of the aerogel thermal insulation layer 2 module, and in actual use, according to the use requirement, there is only one outer ventilation cavity 3 between the aerogel thermal insulation layer 2 and the protective plate group 1, thereby reducing the occupied space of the protective plate group 1.

[0056] The ventilation assembly 10 comprises a branch pipe 1001 and a total air outlet pipe 1002, the branch pipe 1001 is communicated with the outer ventilation cavity 3, the fan 1004 is arranged on the total air outlet pipe 1002, the protective plate group 1 is provided with a ventilation opening in the corresponding position of the outer ventilation cavity 3, and the external gas enters the outer ventilation cavity 3 through the ventilation opening.

[0057] In use, the external gas enters the outer ventilation cavity 3 through the ventilation opening, and then is discharged outwardly through the branch pipe 1001 and the total air outlet pipe 1002 of the ventilation assembly 10, so as to exchange the internal and external gases in the outer ventilation cavity 3. In the outer ventilation cavity 3, a temperature sensor can be preset, a temperature threshold T1 is preset in the temperature sensor, when the temperature in the outer ventilation cavity 3 reaches the preset temperature threshold T1, the fan 1004 switch on the total air outlet pipe 1002 is started, the exchange speed of the internal and external gases in the outer ventilation cavity 3 is accelerated, and the cooling speed in the outer ventilation cavity 3 is improved. Figure 4The inner part of the outer ventilation cavity 3 is provided with a partition plate 5, the partition plate 5 divides the outer ventilation cavity 3 into a plurality of unit cavities, the bottom plate 101, the protection plate group 1, the upper supporting plate 9 and the aerogel thermal insulation layer 2 form a unit cavity, correspondingly, the branch pipe 1001 is provided with a plurality of branch pipes 1001, the plurality of branch pipes 1001 correspond to the plurality of unit cavities one by one, the ventilation opening is provided with a plurality of groups of ventilation openings, the plurality of groups of ventilation openings correspond to the plurality of unit cavities respectively, the bottom of the partition plate 5 is fixedly connected with the bottom plate 101, one side of the partition plate 5 close to the aerogel thermal insulation layer 2 is provided with a partition plate 505, one side of the partition plate 505 is provided with a sealing gasket, the two sides of the sealing gasket are respectively attached with the aerogel thermal insulation layer 2 and the partition plate 505, the top of the bottom plate 101 is provided with a mounting plate 102, the mounting plate 102 is used for mounting and supporting the aerogel thermal insulation layer 2, in use, the plurality of unit cavities are used as independent spaces, each unit cavity corresponds to a group of ventilation openings, the plurality of groups of ventilation openings are respectively used as the special air inlets of the plurality of unit cavities, corresponding to the plurality of unit cavities, the plurality of branch pipes 1001 in the ventilation assembly 10 are respectively used as the air outlet ends of the plurality of unit cavities, and the electromagnetic valve 1003 is arranged on the branch pipe 1001, which is used to control the communication state between the unit cavity and the total air outlet pipe 1002.Further, the air inlet assembly 6 is arranged on the protective plate group 1 corresponding to the air vent, the air inlet assembly 6 comprises an air vent part 7, the air vent part 7 comprises an air vent cylinder 701 fixedly connected with the air vent, the inside of the air vent cylinder 701 is provided with a plugging column 702, one end of the air vent cylinder 701 away from the protective plate group 1 is provided with a corrugated pipe 703, one end of the corrugated pipe 703 away from the air vent cylinder 701 is provided with a butt joint plate 704, the butt joint plate 704 is provided with an air inlet hole 7041 corresponding to the plugging column 702, it can be understood that the end of the plugging column 702 is in the shape of a truncated cone, the end of the plugging column 702 close to the butt joint plate 704 has a smaller diameter, so that the air inlet hole 7041 can be connected with the plugging column 702, in use, an air humidity sensor can be arranged in the inside of the air vent cylinder 701, the air humidity threshold H1 is preset in the air humidity sensor, when the air in the outer air vent cavity 3 is exchanged with the air outside, the air entering the outer air vent cavity 3 is monitored, if the humidity of the air reaches the threshold H1, in order to avoid the humidity in the outer air vent cavity 3 becoming higher and higher, the power of the fan 1004 on the total air outlet pipe 1002 is increased, the rotating speed of the fan 1004 is increased, in this process, the air entering the outer air vent cavity 3 through the air inlet hole 7041 cannot meet the demand of the air exhaust amount of the fan 1004, negative pressure is generated in the outer air vent cavity 3 and the negative pressure increases rapidly, the negative pressure in the outer air vent cavity 3 is used to attract the butt joint plate 704 outside the protective plate group 1 close to the air vent cylinder 701, and the corrugated pipe 703 between the air vent cylinder 701 and the butt joint plate 704 is compressed, the inside of the corrugated pipe 703 is provided with a steel wire spring, the steel wire spring is used to provide support force for the corrugated pipe 703, so that the air inlet hole 7041 and the plugging column 702 can be kept corresponding, when the corrugated pipe 703 is contracted, the air inlet hole 7041 of the butt joint plate 704 and the plugging column 702 are stably connected, a wear-resistant layer is arranged on the axial surface of the plugging column 702, which can improve the stability of the sealing connection of the air inlet hole 7041 and the plugging column 702, so as to complete the sealing of the air vent cylinder 701. The humidity of the external environment or rain can be effectively reduced, when it is rainy, the humid gas or rainwater can enter the inside of the outer air vent cavity 3 under the continuous negative pressure attraction of the fan 1004, the rainwater or humidity can cause the aerogel thermal insulation layer 2 to be wetted, and then the thermal conductivity of the aerogel thermal insulation layer 2 is increased, the humidity and rainwater in the outer air vent cavity 3 cannot be effectively discharged in time, and mold can also be generated in the inside of the unit cavity.

[0058] In actual application process, when the outer ventilation cavity 3 is a whole, due to the different positions, orientations and different sunshine intensities of the protection plate group 1, the temperature in the outer ventilation cavity 3 is unevenly distributed, and the gas usually enters from the ventilation cylinder 701 with the minimum resistance, and in the use process, the heat dissipation in some areas is poor, or the humidity accumulation is formed in some areas, therefore, as preferred, a plurality of temperature sensors are arranged in the plurality of unit cavities respectively, the temperature value in each unit cavity is detected by the temperature sensor in the unit cavity, when the temperature threshold value in a unit cavity reaches the preset threshold value T1, if the temperature threshold value in other unit cavities is maintained at a safe temperature value lower than the threshold value T1, the electromagnetic valve 1003 on the top branch pipe 1001 of the other unit cavities remains closed, then the high-temperature gas in the unit cavity with the temperature threshold value reaching T1 is continuously sucked by the fan 1004, the external gas continuously enters the unit cavity through the air inlet hole 7041 and is discharged outward through the negative pressure suction of the fan 1004, the gas circulation in the unit cavity is maintained through the air flow exchange, and the unit cavity with high temperature is cooled.

[0059] However, it can be understood that in the process of sucking the external gas into the unit cavity by the fan 1004 and then discharging the gas outward through the total air outlet pipe 1002, the path of the gas entering the unit cavity and then flowing upward is fixed, and a blind area of air flow heat exchange is formed in the local position of the non-air flow path in the unit cavity, so that the cooling degree in the unit cavity is not complete, and for this, as a further preferred embodiment, reference is made to Figures 5-9 The turbulence part 8 is arranged at the end of the ventilation cylinder 701 away from the corrugated pipe 703, and is used for disturbing the gas flowing into the unit cavity, specifically, the turbulence part 8 includes the impeller 801 rotationally connected in the ventilation cylinder 701, the middle part of the impeller 801 is provided with the connecting rod 802, the end of the connecting rod 802 away from the impeller 801 is provided with the rotating plate 803, the outer side of the rotating plate 803 is provided with the disturbance blade 804, in the use process, under the negative pressure suction of the fan 1004, the external gas enters the unit cavity through the air inlet hole 7041, when the air flow passes through the impeller 801, the air flow passes through the blades of the impeller 801 to make the impeller 801 start to rotate, the impeller 801 rotates at the same time to drive the rotating plate 803 and the disturbance blade 804 to rotate concentrically, the end of the disturbance blade 804 away from the rotating plate 803 is close to the side of the partition plate 5, when the disturbance blade 804 rotates, it greatly covers the space in the unit cavity, and the disturbance blade 804 is used to disturb the rotation in the unit cavity, so as to avoid the high-temperature and high-humidity gas to gather in the local part of the unit cavity.

[0060] Reference is made to Figure 5 、 Figure 6 、 Figure 10 and Figure 11The inner circulation heat preservation system 11 is arranged on the guard plate group 1, the inner circulation heat preservation system 11 comprises a gas guide pipe 1101, one end of the gas guide pipe 1101 is communicated with the bottom of the unit cavity, the end of the gas guide pipe 1101 away from the unit cavity penetrates through the bottom plate 101 and the guard plate group 1 located on the inner side and is connected with the indoor, the gas guide pipe 1101 of the inner cavity 4 is provided with a first valve 11011, the output end of the fan 1004 is provided with a second valve 1103, the second valve 1103 is a switching valve, the output end of the fan 1004 is connected with a circulation pipeline 1102 through the second valve 1103, one end of the circulation pipeline 1102 away from the second valve 1103 is connected with the gas guide pipe 1101 through a third valve 1104, and the third valve 1104 is a switching valve.

[0061] In use, when the external temperature is high, the cooling effect of the external air cavity 3 is generally relying on the external air entering the external air cavity 3 and carrying the high-temperature gas to the outside, and the external air cavity 3 still maintains a relatively high temperature. In order to avoid the temperature being too high during the day, when the external temperature drops sharply at night, the temperature of the external air cavity 3, especially the outside of the aerogel thermal insulation layer 2 with relatively low temperature, will be lower than the dew point temperature, resulting in the formation of condensed water. The repeated formation and dewing of the condensed water will continuously reduce the thermal insulation performance of the aerogel thermal insulation layer 2, and will gradually damage the aerogel thermal insulation layer 2, causing cracks and damage to the aerogel thermal insulation layer 2, affecting the service life of the aerogel thermal insulation layer 2, and being not conducive to the recycling of the aerogel thermal insulation layer 2. To this end, when the temperature entering the external air cavity 3 reaches the preset high temperature, the closing process of the ventilation cylinder 701 is started at this time, specifically, by increasing the power of the fan 1004 on the total air outlet pipe 1002, the rotating speed of the fan 1004 is increased, a negative pressure is generated in the external air cavity 3, and the negative pressure in the external air cavity 3 is used to suck the abutting plate 704 to compress the bellows 703 and approach the ventilation cylinder 701, the abutting plate 704 air inlet hole 7041 is connected with the plugging column 702, and the ventilation cylinder 701 is closed. At this time, the internal circulation heat preservation system 11 is started, specifically, by opening the first valve 11011, the external air cavity 3 is connected with the indoor, at this time the third valve 1104 is kept closed, the electromagnetic valve 1003 on the branch pipe 1001 corresponding to the external air cavity 3 is kept open, according to the detection of the temperature sensor in the unit cavity, the electromagnetic valve 1003 corresponding to the unit cavity with higher temperature can also be opened separately, the second valve 1103 keeps the output end of the fan 1004 to the outside, after the fan 1004 is started, the negative pressure of the fan 1004 attracts the low-temperature gas in the room to enter the unit cavity through the air guide pipe 1101, and moves upward under the negative pressure suction, the one end of the air guide pipe 1101 in the unit cavity corresponds to the middle region of the disturbance blade 804, when the airflow entering the unit cavity moves upward, it continuously passes through and pushes the disturbance blade 804 to rotate, so that the low-temperature gas in the room enters the unit cavity, is uniformly dispersed in the unit cavity, and the temperature in the unit cavity is reduced. Subsequently, it is discharged to the outside through the top branch pipe 1001, the total air outlet pipe 1002 and the output end of the fan 1004. In this process, when the temperature detected by the temperature sensor in the unit cavity is lower than the preset high temperature threshold, in order to reduce waste, the first valve 11011 is closed to cut off the connection between the indoor and the external air cavity 3, and the valve on the air guide pipe 1101 corresponding to the high-temperature unit cavity is opened to connect the air guide pipe 1101 with the circulation pipeline 1102. The second valve 1103 is disconnected from the fan 1004 and the outside, and is connected with the circulation pipeline 1102. At this time, the air guide pipe 1101, the unit cavity, the total air outlet pipe 1002 and the circulation pipeline 1102 form a circulation passage of the internal circulation heat preservation system 11. Subsequently, in the process of the fan 1004 running,The lower temperature gas in the circulation path delays the temperature rise in the unit cavity.

[0062] It can be understood that the starting period of the internal circulation heat preservation system 11 for reducing the temperature in the unit cavity is preferably the transition period from daytime to night or evening. By reducing the temperature in the outer ventilation cavity 3 in advance, the problem of excessive condensate in the outer ventilation cavity 3 due to excessive temperature difference from daytime to night, which causes damage to the aerogel insulation layer 2, is avoided. When the external environment humidity is high, the ventilation cylinder 701 can be closed by the abutment plate 704 based on the monitoring result of the air humidity sensor in the ventilation cylinder 701 in advance to reduce the amount of external moisture entering the unit cavity before night or evening arrives.

[0063] The upper surface of the bottom plate 101 is below the ground to prevent the heat bridge from continuously transmitting heat to the indoor direction.

[0064] Reference Figures 12-13 The inner side of the ventilation cylinder 701 is provided with a movable groove 7011, the inside of the movable groove 7011 is movably connected with the impeller 801. Specifically, the inside of the movable groove 7011 is provided with a spring 7012, the outer side of the impeller 801 is provided with a bearing, the inner ring of the bearing is fixedly connected with the impeller 801, the outer ring of the bearing is limitingly and slidingly connected in the inside of the movable groove 7011 and is fixedly connected with one end of the spring 7012. In the initial state, the spring 7012 is in the compressed state, and the impeller 801 is located in the movable groove 7011 close to one end of the spring 7012. The inner side of the abutment plate 704 is provided with a pressing plate 7042 corresponding to the outer ring of the bearing. During the abutting process of the air inlet hole 7041 and the plugging column 702, the pressing plate 7042 gradually approaches the outer ring of the bearing and pushes the bearing, the impeller 801 and the disturbance vane 804 to move towards the aerogel insulation layer 2. The disturbance vane 804 is provided with a water absorption layer for absorbing the moisture in the unit cavity. The water absorption layer includes a cotton layer 8041 provided on the outer side of the disturbance vane 804. By increasing the volume of the cotton layer 8041, the water absorption amount of the cotton layer 8041 is further improved. When the air inlet hole 7041 is abutted with the plugging column 702, the cotton layer 8041 is attached to the side wall of the aerogel insulation layer 2 to scrape and absorb the condensate layer formed on the side wall of the aerogel insulation layer 2.

[0065] It can be understood that the friction between the blocking column 702 and the air inlet hole 7041 is greater than the resilience of the steel wire spring in the spring 7012 and the corrugated pipe 703, so that the blocking column 702 and the air inlet hole 7041 are sealed and connected, and the disturbance blade 804 is kept close to the side wall of the aerogel thermal insulation layer 2. When the ventilation cylinder 701 is reopened, the air supply in each unit cavity is sequentially reversed by the fan 1004. During the air supply stage, only the electromagnetic valve 1003 on the unit cavity top branch pipe 1001 is opened, and other channels are kept closed. By increasing the pressure in the unit cavity, the blocking column 702 and the air inlet hole 7041 are separated from each other. The air pressure pushes the abutment plate 704 to move outward, and the ventilation cylinder 701 is reopened. At the same time, please refer to Figures 12-18 A guide vane 502 is arranged on one side of the partition plate 5 and inclined downward, which is used to gather the condensed water droplets downward. An inclined gap 5021 is arranged on the side of the guide vane 502 away from the partition plate 5, which is used to guide the condensed water droplets to gather at the bottom end of the guide vane 502. A swing groove 501 is arranged on one side of the partition plate 5. An elastic joint 503 is arranged at one end of the guide vane 502. The guide vane 502 is fixedly connected to the inside of the swing groove 501 through the elastic joint 503. The guide vane 502 is provided with a plurality of guide vanes 502. A plurality of guide vanes 502 are provided with a synchronous member 504. The synchronous member 504 is used for synchronous up-down swinging of the plurality of guide vanes 502. The synchronous member 504 includes a synchronous rod 5041. A sliding groove 5042 is arranged in the inside of the guide vane 502. A steel ball 5043 is arranged at the corresponding position of the synchronous rod 5041 and the guide vane 502. The steel ball 5043 is limitingly and slidingly connected in the inside of the sliding groove 5042.

[0066] The end of the disturbance blade 804 away from the rotating plate 803 can contact the guide vane 502, which is used to drive the guide vane 502 to swing up and down during rotation. The water droplets gathered on the guide vane 502 are absorbed by the water absorption layer on the disturbance blade 804, so as to realize the removal of the water droplets on the side wall of the aerogel thermal insulation layer 2 and the partition plate 5. The wetted water absorption layer on the disturbance blade 804 is dried again by using solar energy to heat the protection plate group 1 and the unit cavity when the temperature in the unit cavity rises the next day. The water in the wetted water absorption layer evaporates and is discharged outside the cavity along with the total air outlet pipe 1002, so as to ensure the moisture absorption capacity again at night the next day. Specifically, as Figure 12 and 13As shown, in the initial state, the disturbance blade 804 is located near one side of the movable groove 7011, and the disturbance blade 804 does not contact the guide vane 502 when it rotates. When the external temperature is relatively high, the power of the fan 1004 on the total air outlet pipe 1002 is increased, and the negative pressure in the unit cavity attracts the abutting plate 704 to abut the blocking column 702 with the air inlet hole 7041, thereby closing the ventilation cylinder 701. At the same time, the pressing plate 7042 pushes the outer ring of the outer bearing of the impeller 801 to move in the direction of the rotating plate 803, the spring 7012 is stretched, the rotating plate 803 and the disturbance blade 804 move towards the aerogel thermal insulation layer 2, and the cotton layer 8041 is attached to the aerogel thermal insulation layer 2, as shown in Figure 14 As shown, at the same time, the end of the disturbance blade 804 is in abutment with the bottom end of the guide vane 502 close to the rotating plate 803, as shown in Figure 15 and 16 As shown, then the first valve 11011 is opened, the indoor and the external ventilation cavity 3 are connected, and the low-temperature gas in the indoor is sucked into the unit cavity by starting the fan 1004. The end of the air guide pipe 1101 corresponding to the middle region of the disturbance blade 804 is in communication with the unit cavity. When the airflow flows from bottom to top, the disturbance blade 804 is driven to rotate counterclockwise with the center point of the bearing as the center. When the disturbance blade 804 contacts one end of the guide vane 502, the water droplets gathered at the end of the guide vane 502 are absorbed by the water absorption layer on the disturbance blade 804, as shown in Figure 16 As shown, the guide vane 502 can be provided as a guide vane group composed of a plurality of guide vanes 502 with different widths. Between two adjacent disturbance blades 8, there is a guide vane group. The width of the guide vane 502 in each guide vane group increases from top to bottom. The width of the guide vane 502 corresponding to the center of the rotating plate 803 is the largest, so that the water droplets from top to bottom are enriched on the guide vane 502 corresponding to the center of the rotating plate 803.

[0067] However, there are still small water droplets on the guide vane 502. These small water droplets cannot or will not gather at the bottom end of the guide vane 502. Under the elastic support of the elastic joint 503 to the guide vane 502, the end of the disturbance blade 804 contacts the bottom end of the guide vane 502, and continues to rotate upward. After the end of the disturbance blade 804 passes through the guide vane 502, the guide vane 502 rebounds and vibrates through the rebounding effect of the elastic joint 503. Further, by providing the synchronizer 504 on the guide vane 502, when the disturbance blade 804 slides through the end of the guide vane 502, the limiting effect of the sliding groove 5042 on the steel ball 5043 can make the plurality of guide vanes 502 swing up and down synchronously with the guide vane 502 swinging up and down, so as to accelerate the transfer of small water droplets on the narrower guide vane 502 to the wider guide vane 502. The wide coverage of the disturbance blade 804 in the unit cavity enables the disturbance blade 804 to absorb the small water droplets that are separated from the disturbance blade 804 due to vibration when the guide vane 502 vibrates.

[0068] The application also provides an assembling method of the 3D-printed aerogel insulation panel assembly structure, comprising the following steps:

[0069] S1, providing an aerogel insulation layer 2 with a predetermined shape and strength formed by 3D printing technology, a mounting plate 102 provided on the top of the bottom plate 101 for mounting and supporting the aerogel insulation layer 2, a groove for forming a unit cavity and a ventilation opening for docking installation of the air inlet assembly 6 on the protective plate group 1, and an interface for mounting the air guide pipe 1101 is preformed on the mounting bottom plate 101 to form a mounting base in the outer ventilation cavity 3.

[0070] S2, mounting the 3D-printed aerogel insulation layer 2 on the mounting base, mounting the partition plate 5 in the groove preformed on the surface of the aerogel insulation layer 2, and forming a plurality of independent unit cavities together with the aerogel insulation layer 2.

[0071] S3, mounting the support plate 9 and the ventilation assembly 10 on the top of the unit cavity, sealing and connecting each branch pipe 1001 with the corresponding unit cavity outlet; connecting the air guide pipe 1101 with the interface preformed on the mounting bottom plate 101 at the bottom of the unit cavity and leading to the indoor; connecting the circulating pipe 1102 with the output end of the fan 1004 and the corresponding valve of the air guide pipe 1101 to form an internal circulation loop.

[0072] S4, fixing and installing the ventilation part 7 of the air inlet assembly 6 at the ventilation opening to ensure that the ventilation cylinder 701 is in communication with the unit cavity, and installing the impeller 801 of the turbulence part 8 in the ventilation cylinder 701, and then installing the corrugated pipe 703 and the docking plate 704.

[0073] S5, installing the outer side part of the protective plate group 1 to close the entire assembly structure, connecting the control lines of the fan, the sensor and all valves, and completing the assembly of the entire system.

[0074] The above is only the preferred specific embodiment of the application, but the protection scope of the application is not limited thereto, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the application within the technical range disclosed by the application, which should be covered within the protection scope of the application.

[0075] In the description of the specification, the description using the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" etc. means that the particular feature, structure, material or characteristic being described is included in at least one embodiment or example of the present application. The illustrative appearances of the above-mentioned terms in the specification do not necessarily refer to the same embodiment or example. Moreover, the particular features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples, without mutual contradiction.

Claims

1. A 3D printing aerogel-based thermal insulation panel assembly structure comprising a protective plate group (1), characterized in that, The protective plate group (1) is provided with an upper support plate (9) at the top, and is internally provided with an aerogel thermal insulation layer (2) and an outer ventilation cavity (3); The upper support plate (9) is provided with a ventilation assembly (10) at the top, and the outer ventilation cavity (3) is internally provided with a partition plate (5) for separating the outer ventilation cavity (3) into multiple unit cavities; the ventilation assembly (10) is connected with the multiple unit cavities, and a fan (1004) in the ventilation assembly (10) is used for discharging gas in the unit cavities and generating negative pressure; The protective plate group (1) is provided with an air inlet assembly (6) corresponding to each unit cavity, for external gas to enter; The air inlet assembly (6) comprises a ventilation part (7), and the ventilation part (7) comprises a ventilation cylinder (701), a plugging column (702), a corrugated pipe (703) and a butt joint plate (704); the butt joint plate (704) is provided with an air inlet hole (7041) for sealing butt joint of the plugging column (702), for closing the ventilation cylinder (701) when the negative pressure in the unit cavity increases; The protective plate group (1) is internally provided with an internal circulation thermal insulation system (11), which comprises an air guide pipe (1101) for communication between the unit cavities and the indoor environment; the output end of the fan (1004) is connected back to the air guide pipe (1101) through a circulation pipeline (1102); the air guide pipe (1101) and the circulation pipeline (1102) are provided with a valve group; the internal circulation thermal insulation system (11) is used for connecting the indoor environment with the outer ventilation cavity (3), and cooperating with the fan (1004) to suck indoor low-temperature gas into the unit cavities to control the temperature; The air inlet assembly (6) further comprises a turbulence part (8) arranged on the ventilation cylinder (701), and the turbulence part (8) comprises an impeller (801) rotatably connected in the ventilation cylinder (701); the impeller (801) is connected with a rotating plate (803) and a turbulence vane (804) at the middle part; the fan (1004) sucks external airflow through the ventilation cylinder (701) and the impeller (801), drives the impeller (801) and the turbulence vane to rotate, and disturbs the gas flowing into the unit cavities; An active groove (7011) is formed in the inner side of the ventilation cylinder (701), and a spring (7012) is arranged in the active groove (7011); the outer side of the impeller (801) is connected with the spring (7012) through a bearing; a pressing plate (7042) is arranged on the inner side of the butt joint plate (704), and the pressing plate (7042) corresponds to the outer ring of the bearing; when the air inlet hole (7041) is butt jointed with the plugging column (702), the pressing plate (7042) approaches the outer ring of the bearing and pushes the turbulence vane (804) inward; A water absorption layer is arranged on the turbulence vane (804) for absorbing moisture in the unit cavities; the water absorption layer further comprises a cotton layer (8041) arranged on the outer side of the turbulence vane (804); After the plugging column (702) is butt jointed with the air inlet hole (7041), the friction force between the plugging column (702) and the air inlet hole (7041) is greater than the resilience of the steel wire spring in the spring (7012) and the corrugated pipe (703), so as to keep the turbulence vane (804) close to the aerogel thermal insulation layer (2).

2. The 3D printing aerogel-based thermal insulation panel assembly structure according to claim 1, characterized in that, The valve group comprises a first valve (11011) arranged on the air guide pipe (1101), a second valve (1103) arranged on the output end of the fan (1004), and a third valve (1104) arranged between the circulating pipe (1102) and the air guide pipe (1101).

3. The 3D printing aerogel-based thermal insulation panel assembly structure according to claim 2, characterized in that, The side of the baffle (5) is provided with inclined flow guides (502) arranged downward, the flow guides (502) are provided in plurality, and are used for gathering condensed water droplets downward, and the side, away from the baffle (5), of the flow guides (502) is provided with inclined notches (5021) for guiding the condensed water droplets to be gathered and concentrated at the bottom end of the flow guides (502); The side of the baffle (5) is provided with a swing groove (501), one end of the flow guide (502) is arranged in the swing groove (501) through an elastic joint (503), and the plurality of flow guides (502) are provided with synchronous members (504), which are used for synchronous up-down swinging of the plurality of flow guides (502).

4. The 3D printing aerogel-based thermal insulation panel assembly structure according to claim 3, characterized in that, The end portion of the air guide pipe (1101) in communication with the unit cavity corresponds to the middle region of the disturbance vane (804), and is used for driving the disturbance vane (804) to rotate when the air flow flows upward through the air guide pipe (1101), scraping the side wall of the aerogel thermal insulation layer (2) at the same time, and contacting one end of the flow guide (502) and absorbing the gathered water droplets.

5. The 3D printing aerogel-based thermal insulation panel assembly structure according to claim 4, characterized in that, After the plugging column (702) is butted against the air inlet hole (7041), the end portion, away from the rotating plate (803), of the disturbance vane (804) can contact the bottom end of the flow guide (502), which is used for driving the flow guide (502) to swing up and down during the rotating process, and is used for removing the water droplets on the side wall of the aerogel thermal insulation layer (2) and the baffle (5).

6. The 3D printing aerogel-based thermal insulation panel assembly structure according to claim 5, characterized in that, The outer ventilation cavity (3) is provided with a temperature sensor, the ventilation cylinder (701) is provided with an air humidity sensor, the ventilation assembly (10) comprises a branch pipe (1001) and a total air outlet pipe (1002), the branch pipe (1001) is in communication with the outer ventilation cavity (3), the fan (1004) is arranged on the total air outlet pipe (1002), and the fan (1004) is a bidirectional fan.

7. The assembly method based on the 3D printing aerogel insulation panel assembly structure according to any one of claims 1-6, characterized in that, The method comprises the following steps: S1, providing an aerogel thermal insulation layer (2) integrally formed by a 3D printing technology, having a predetermined shape and strength, a mounting plate (102) for mounting and supporting the aerogel thermal insulation layer (2) is arranged on the top of a bottom plate (101), a ventilation opening for mounting a ventilation assembly (6) is arranged on the protection plate group (1), a groove for forming a unit cavity is arranged on the protection plate group (1), an interface for mounting an air guide pipe (1101) is arranged on the mounting bottom plate (101), and a mounting base is formed in the outer ventilation cavity (3); S2, the 3D printed aerogel thermal insulation layer (2) is mounted on the mounting base, the baffle (5) is mounted in the groove arranged on the surface of the aerogel thermal insulation layer (2), and the baffle (5) and the aerogel thermal insulation layer (2) jointly enclose a plurality of independent unit cavities; S3, install the support plate (9) and the ventilation assembly (10) on the top of the unit cavity, seal and connect each branch pipe (1001) with the corresponding unit cavity outlet; at the bottom of the unit cavity, connect the air induction pipe (1101) with the pre-installed interface on the installation bottom plate (101) and lead to the indoor; connect the circulation pipe (1102) with the corresponding valve of the fan (1004) output end and the air induction pipe (1101) to form an internal circulation loop; S4, fix the ventilation part (7) of the air inlet assembly (6) at the ventilation opening to ensure that the ventilation cylinder (701) is in communication with the unit cavity, install the impeller (801) of the turbulence part (8) in the ventilation cylinder (701), and then install the corrugated pipe (703) and the butt joint plate (704); S5, install the outer side part of the protection plate group (1) to close the entire assembly structure, connect the control lines of the fan, the sensor and all the valves, and complete the assembly of the entire system.

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