Thermal insulation curtain wall for building

Abstract

The present application discloses a thermal insulation curtain wall for buildings, which relates to the field of thermal insulation curtain walls, including columns, beams and metal cover plates, a sub-frame is arranged on the metal cover plate, elastic seals are fixedly arranged on the columns and beams, the sub-frame and the elastic seals form a snap fit, the columns and beams are further provided with a first aluminum alloy pressing plate and a second aluminum alloy pressing plate, both of which press the sub-frame against the corresponding columns or beams, and a thermal insulation layer is filled on one side of the metal cover plate close to the columns and beams. The present application presses the sub-frame against the first aluminum alloy pressing plate and the second aluminum alloy pressing plate, effectively dispersing the weight of the metal cover plate and the thermal insulation layer to the columns and beams, which is beneficial to reducing the gravity pressure of the curtain wall located above the outer wall of the building on the lower curtain wall after the curtain wall is installed, making it difficult for the lower curtain wall to deform, thereby extending the service life, and having the characteristics of strong practicality and good supporting effect.

Description

Technical Field

[0001] The present application relates to the field of thermal insulation curtain walls, and in particular to a thermal insulation curtain wall for buildings. Background Art

[0002] The curtain wall is the exterior wall enclosure of a building. It is non-load-bearing and is hung on the exterior wall. It is also called a curtain wall. It needs to have certain wind pressure resistance, water tightness, air tightness and thermal insulation properties. It is widely used in exterior wall insulation and sound insulation operations of large buildings and high-rise buildings.

[0003] A passive house is a type of building that significantly reduces energy consumption by making full use of renewable resources. It requires only very little energy each year to maintain a high-quality indoor living environment all year round. It avoids the design of cold and hot bridges, prevents the loss of indoor cold and hot energy, and effectively reduces building energy consumption.

[0004] The heat transfer coefficient of the exterior wall of traditional buildings is generally 0.35-0.45W / (m²·K). However, passive houses require higher heat transfer coefficients due to the need for thermal insulation, which needs to be less than 0.15W / (m²·K). In order to meet the heat transfer coefficient, curtain walls are usually required on the exterior walls of buildings to achieve energy saving, heat preservation and sound insulation.

[0005] In the related art, curtain walls are usually designed to be thicker for thermal insulation. When the curtain walls are assembled and hung on the exterior walls, the gravity pressure of the upper curtain wall causes the supporting performance of the lower curtain wall on the upper curtain wall to deteriorate and cause deformation. There is room for improvement. Summary of the invention

[0006] In order to reduce the gravity pressure of the upper curtain wall on the lower curtain wall, the present application provides a thermal insulation curtain wall for building.

[0007] The present application provides a thermal insulation curtain wall for buildings using the following technical solutions:

[0008] A heat-insulating curtain wall for buildings, comprising columns and beams, and also comprising a plurality of metal cover plates arranged at intervals, wherein the columns and beams are arranged in a staggered manner, and a sub-frame is fixedly arranged at the edge of any of the metal cover plates close to the columns and beams, and elastic seals are fixedly arranged on the columns and beams along their length directions, and the sub-frames and corresponding elastic seals form a snap fit, and a first aluminum alloy pressing plate is abutted on the columns by bolts, and the first aluminum alloy pressing plate is provided with a first abutting portion on both sides perpendicular to the length direction of the columns, and any first abutting portion The second abutting portion is pressed against the sub-frame of the corresponding metal cover plate, and a plurality of second aluminum alloy pressure plates and supporting angle steels for supporting the upper sub-frame are arranged at intervals on the crossbeam along its length direction. The second aluminum alloy pressure plate is pressed against the crossbeam by bolts, and a second abutting portion is arranged on the lower side of the second aluminum alloy pressure plate, and the second abutting portion is pressed against the sub-frame of the corresponding metal cover plate. Abutting protrusions are arranged on the side of the first abutting portion and the second abutting portion close to the crossbeam and the column, and a thermal insulation layer is filled on the side of the metal cover close to the column and the crossbeam.

[0009] By adopting the above technical scheme, the elastic seal and the sub-frame are engaged with each other to enable the columns and beams to share a part of the gravity from the metal cover plate and the thermal insulation layer in the sub-frame. At the same time, the first abutting portion on the first aluminum alloy pressure plate and the second abutting portion on the second aluminum alloy pressure plate both press the sub-frame against the column or the beam, and the gravity of the metal plate layer and the thermal insulation layer is further dispersed through the pressing force and the friction force, and will not be easily transmitted to the lower curtain wall when the curtain wall is spliced. The abutting protrusion can cause the first abutting portion and the second abutting portion to be slightly deformed during abutment, and under the recovery effect of the deformation, the first abutting portion and the second abutting portion drive the abutting protrusion to be further pressed against the sub-frame. At the same time, the sub-frame is pressed against the elastic seal under the extrusion of the abutting protrusion, and an effect close to fixing is achieved under the dual elastic action of the elastic seal and the abutting protrusion, further ensuring that the gravity of the upper curtain wall will not be easily transmitted to the lower curtain wall.

[0010] Preferably, the columns, beams and sub-frames are all made of glass fiber reinforced polyurethane, and the columns and beams are filled with flame-retardant polyurethane foam.

[0011] By adopting the above technical scheme, the glass fiber reinforced polyurethane itself has a low thermal conductivity, excellent high and low temperature resistance, and is immortal. The columns, beams and sub-frames made of it have high strength and good durability, and the flame-retardant polyurethane foam has high insulation and high heat insulation. While improving the overall flame retardancy of the curtain wall, it also reduces the overall weight of the curtain wall. On the one hand, it is convenient for the splicing and installation of the curtain wall, and on the other hand, it is conducive to further ensuring that the upper curtain wall does not exert excessive pressure on the lower curtain wall after the splicing is completed.

[0012] Preferably, the thermal insulation layer comprises nano aerogel felt, which is attached to the metal cover plate and has a thickness of 40 mm.

[0013] By adopting the above technical solution, the thermal insulation effect of nano aerogel felt is several times that of traditional thermal insulation materials, and it has a long service life and is inorganic and fireproof. On the one hand, its high thermal insulation property makes it possible to achieve excellent thermal insulation effect without being too thick, thereby reducing the total weight of the curtain wall. On the other hand, it can play a role in fireproofing and waterproofing, preventing the thermal insulation layer inside the curtain wall from catching fire or getting damp in severe weather and being unable to continue to ensure the thermal insulation effect.

[0014] Preferably, the thermal insulation layer further comprises a fiber reinforced calcium silicate board, the fiber reinforced calcium silicate board is arranged on the side of the nano aerogel felt away from the metal cover plate, and the fiber reinforced calcium silicate board is 30 mm thick.

[0015] By adopting the above technical scheme, the calcium silicate board has excellent fireproof performance and ultra-long service life, and has a small thermal conductivity and excellent sound insulation performance. On the one hand, it can play a heat insulation effect, and on the other hand, it can play a sound insulation effect, thereby improving the sound insulation performance of the building.

[0016] Preferably, thermal insulation rock wool is arranged between the nano aerogel felt and the fiber reinforced calcium silicate board, and the thermal insulation rock wool is 200 mm thick.

[0017] By adopting the above technical solution, the thermal insulation rock wool can play the role of thermal insulation and heat insulation, which is beneficial to further improve the thermal insulation effect of the curtain wall.

[0018] Preferably, a plurality of thermal insulation rock wools are arranged between the nano aerogel felt and the fiber reinforced calcium silicate board, and fireproof rock wool is filled between any two adjacent thermal insulation rock wools, and the thickness of the fireproof rock wool is equal to the thickness of the thermal insulation rock wool.

[0019] By adopting the above technical solution, fireproof rock wool is mixed between the two thermal insulation rock wools. On the one hand, a flame retardant layer can be formed between the thermal insulation rock wools to prevent the curtain wall from burning for a long time in the event of a fire, thereby affecting the supporting performance. On the other hand, the thermal insulation rock wool can be used to further reduce the overall weight of the curtain wall, which is beneficial to further ensure that the upper curtain wall does not exert excessive pressure on the lower curtain wall after splicing is completed.

[0020] Preferably, the column is provided with a transition angle steel for connecting the curtain wall to the concrete body, the transition angle steel includes a first transition part and a second transition part, the first transition part is fixed to the column by a bolt group, and the second transition part is provided in the form of a protruding fiber reinforced calcium silicate board.

[0021] By adopting the above technical solution, since the traditional method of fixing the beam is to fix the transition angle steel on the beam and then fix it on the outer wall of the building, such operation may cause the transition angle steel to bend and deform due to the deadweight of the curtain wall. However, setting the transition angle steel on the column can prevent the second transition part from bending and deforming due to excessive tension, which is beneficial to improving the installation strength of the curtain wall and extending the service life of the curtain wall.

[0022] Preferably, a square tube for supporting fireproof rock wool and thermal insulation rock wool is fixedly provided between the nano aerogel felt and the fiber reinforced calcium silicate board.

[0023] By adopting the above technical solution, the setting of the square tube can, on the one hand, support the fireproof rock wool and thermal insulation rock wool between the nano aerogel felt and the fiber reinforced calcium silicate board, and on the other hand, it can cooperate with the fiber reinforced calcium silicate board to fix the curtain wall on the outer wall of the building. At this time, the square tube can enhance the strength of the fiber reinforced calcium silicate board.

[0024] Preferably, a foam rod is embedded between any two of the nano-aerogel felts, and a weather-resistant sealant is provided between any two of the metal cover plates.

[0025] By adopting the above technical solution, the provision of the foam rod and the weather-resistant sealant can, on the one hand, improve the air tightness of the curtain wall after splicing is completed; on the other hand, both are elastic and can provide a certain micro-movement ability for the curtain wall.

[0026] In summary, the present application includes at least one of the following beneficial technical effects:

[0027] 1. The elastic seal and the sub-frame are used to form a snap fit, so that the column or beam can share part of the gravity from the metal cover plate and the thermal insulation layer in the sub-frame. The first aluminum alloy pressing plate and the second aluminum alloy pressing plate are arranged to press the sub-frame against the column or beam using the first abutting portion and the second abutting portion, which is beneficial to further disperse the gravity of the metal plate layer and the thermal insulation layer, thereby reducing the gravity transmitted from the upper curtain wall to the lower curtain wall;

[0028] 2. With the help of nano-aerogel felt, fiber-reinforced calcium silicate board, thermal insulation rock wool and fireproof rock wool, it can play multiple roles such as thermal insulation, heat insulation, sound insulation and fire prevention, which is conducive to improving the applicability of the curtain wall;

[0029] 3. Through the setting of square tubes, on the one hand, fireproof rock wool and thermal insulation rock wool can be supported, and on the other hand, the strength of the fiber-reinforced calcium silicate board can be improved, which is conducive to fixing the fiber-reinforced calcium silicate board on the outer wall of the building. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic cross-sectional view of a thermal insulation curtain wall structure for a building, mainly embodied in the embodiment of the present application. Figure 1;

[0031] Figure 2 This is a schematic cross-sectional view of a thermal insulation curtain wall structure for a building, mainly embodied in the embodiment of the present application. Figure 2 ;

[0032] Figure 3 for Figure 1 The partial enlarged view of part A in the middle mainly shows the structure of the sub-frame;

[0033] Figure 4 for Figure 2 The partial enlarged view of part B in the middle mainly shows the structure of the sub-frame.

[0034] Figure numerals: 1. column; 11. first aluminum alloy pressure plate; 111. first abutting portion; 112. limiting portion; 1111. abutting protrusion; 12. transition angle steel; 121. first transition portion; 122. second transition portion; 2. crossbeam; 21. second aluminum alloy pressure plate; 211. second abutting portion; 22. supporting angle steel; 3. metal cover plate; 31. weather-resistant sealant; 4. rubber sealing strip; 41. clamping portion; 5. sub-frame; 51. mounting groove; 52. foam rod; 6. thermal insulation layer; 61. nano aerogel felt; 62. fiber reinforced calcium silicate board; 621. square tube; 63. thermal insulation rock wool; 64. fireproof rock wool; 7. supporting steel plate; 71. fixing portion; 72. first bending portion; 73. second bending portion; 74. fixing angle steel. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1-4 This application is described in further detail.

[0036] The embodiment of the present application discloses a thermal insulation curtain wall for a building.

[0037] Reference Figure 1 and Figure 2 A heat-insulating curtain wall for building includes columns 1 and beams 2, and also includes a plurality of metal cover plates 3. The columns 1 and beams 2 are filled with flame-retardant polyurethane foam. The columns 1 and beams 2 are perpendicular to each other and fixedly connected by bolts. Elastic seals are fixed on the columns 1 and beams 2 along their length directions. The elastic seals are rubber sealing strips 4. A sub-frame 5 is fixed by bolts on the side of the metal cover plate 3 close to the columns 1 and beams 2 corresponding to the position of the elastic seals on the columns 1 and beams 2. A mounting groove 51 is provided on the side of the sub-frame 5 close to the rubber sealing strip 4. A clamping portion 41 is formed on the rubber sealing strip 4 corresponding to the shape of the mounting groove 51. The clamping groove and the clamping portion 41 form a clamping fit. The columns 1, beams 2 and sub-frame 5 are all glass fiber reinforced polyurethane profiles.

[0038] Reference Figure 3A first aluminum alloy pressing plate 11 is connected to the column 1 through a bolt thread, and a first abutting portion 111 is integrally formed on the first aluminum alloy pressing plate 11. Two first abutting portions 111 are provided, and the two first abutting portions 111 are respectively located on both sides of the first aluminum alloy pressing plate 11 perpendicular to the length direction of the column 1, and the two first abutting portions 111 respectively press the sub-frames 5 on the two metal cover plates 3 onto the column 1 where the first aluminum alloy pressing plate 11 is located. A limiting portion 112 is also integrally formed on one side of the first aluminum alloy pressing plate 11 close to the column. Two limiting portions 112 are provided, and the two limiting portions 112 are respectively located on both sides of the threaded hole of the first aluminum alloy pressing plate 11. Figure 4 A plurality of second aluminum alloy pressure plates 21 and a supporting angle steel 22 for supporting the sub-frame 5 on the upper metal cover plate 3 are arranged at intervals on the crossbeam 2 along its length direction. The supporting angle steel 22 is located above the second aluminum alloy pressure plate 21. A second abutting portion 211 is integrally formed on the side of the second aluminum alloy pressure plate 21 away from the supporting angle steel 22. The second abutting portion 211 presses the sub-frame 5 onto the crossbeam 2 where the second aluminum alloy pressure plate 21 is located. Abutting protrusions 1111 are integrally formed on the side where the first abutting portion 111 and the second abutting portion 211 abut against the sub-frame 5, and any abutting protrusion 1111 is located at the position where the mounting groove 51 of the frame body of the corresponding sub-frame 5 is located. The side of the metal cover plate 3 where the sub-frame 5 is arranged is also filled with a thermal insulation layer 6.

[0039] In actual use, the snap fit formed by the elastic seal and the sub-frame 5 can make the column 1 and the crossbeam 2 share a part of the gravity from the metal cover plate 3 and the thermal insulation layer 6 installed in the sub-frame 5, and the first abutting portion 111 and the second abutting portion 211 form an abutting fit with the sub-frame 5, and press the sub-frame 5 against the corresponding column 1 and the crossbeam 2, which is beneficial to further disperse the gravity of the metal plate layer and the thermal insulation layer 6 by the column 1 and the crossbeam 2 through the pressing force and friction force; at the same time, since the first aluminum alloy pressing plate 11 and the second aluminum alloy pressing plate 21 are both made of aluminum alloy, they have high strength and hardness, and the first abutting portion 111 and the second abutting portion The abutting protrusion 1111 on 211 can further play a pressing role. After pressing, the first abutting portion 111 and the second abutting portion 211 will be slightly deformed. Under the elastic effect of the deformation, the first abutting portion 111 and the second abutting portion 211 drive the abutting protrusion 1111 to further press the sub-frame 5 onto the column 1 or the beam 2. At this time, the rubber sealing strip 4 is also compressed to produce elasticity, and the elastic abutting effect of the abutting protrusion 1111 is combined with the abutting protrusion 1111 to fix the sub-frame. All three are conducive to dispersing the gravity of the metal cover plate 3 and the thermal insulation layer 6 to the beam 2 or the column 1, so that the gravity pressure of the upper curtain wall on the lower curtain wall is reduced;

[0040] Secondly, glass fiber reinforced polyurethane has low thermal conductivity, excellent high and low temperature resistance, high profile strength and good durability. Flame-retardant polyurethane foam has low thermal conductivity, high insulation and high thermal insulation. The combination of the two improves the overall flame retardancy of the curtain wall and reduces the overall weight of the curtain wall. On the one hand, it is convenient for the splicing and installation of the curtain wall. On the other hand, it is also beneficial to reduce the gravity pressure of the upper curtain wall on the lower curtain wall.

[0041] Reference Figure 1 and Figure 2 The thermal insulation layer 6 includes a nano aerogel felt 61, a fiber reinforced calcium silicate board 62, a thermal insulation rock wool 63 and a fireproof rock wool 64. The nano aerogel felt 61 is fixed to the side of the metal cover plate 3 where the sub-frame 5 is installed by gluing. The fiber reinforced calcium silicate board 62 is arranged on the side of the nano aerogel felt 61 away from the metal cover plate 3. The thermal insulation rock wool 63 and the fireproof rock wool 64 are both provided with multiple layers, and the two are alternately filled between the nano aerogel felt 61 and the fiber reinforced calcium silicate board 62 along the length direction of the column 1. The filling of the thermal insulation rock wool 63 and the fireproof rock wool 64 between the nano aerogel felt 61 and the fiber reinforced calcium silicate board 62 starts from the thermal insulation rock wool 63 and ends with the thermal insulation rock wool 63. In this embodiment, a preferred thickness selection is: the nano aerogel felt 61 is 40 mm, the fiber reinforced calcium silicate board 62 is 30 mm, and the thermal insulation rock wool 63 and the fireproof rock wool 64 are 200 mm. The thickness of the structure can be changed according to the building requirements.

[0042] In actual use, the weight of the nano aerogel felt 61, the fiber reinforced calcium silicate board 62, the thermal insulation rock wool 63 and the fireproof rock wool 64 are all relatively low, and their cooperation can reduce the overall weight of the curtain wall, which is beneficial to further reduce the pressure exerted by the upper curtain wall on the lower curtain wall after the curtain wall is assembled. Moreover, the four have certain flame retardant and heat insulation effects. The fiber reinforced calcium silicate board 62 also has strong sound insulation performance. At the same time, the nano aerogel felt 61 and the fiber reinforced calcium silicate board 62 can play a role in waterproofing and moisture-proofing, preventing the fireproof rock wool 64 and the thermal insulation rock wool 63 from decreasing the flame retardant and heat insulation effects due to moisture. The thermal conductivity of the four is relatively low. According to the weighted calculation of thermal resistance and the calculation formula of the heat transfer coefficient of the curtain wall, the heat transfer coefficient of the curtain wall in this embodiment meets the requirements of the heat transfer coefficient of the exterior wall of the passive building, and improves the applicability of the curtain wall. Finally, the alternating filling method of the fireproof rock wool 64 and the thermal insulation rock wool 63 helps to form a flame retardant layer between the thermal insulation rock wool 63, preventing the curtain wall from burning for a long time in the event of a fire, causing damage to the supporting structure of the building.

[0043] Reference Figure 1 and Figure 2, a transfer angle steel 12 for connecting the curtain wall to the outer wall of the building is provided on the column 1, the transfer angle steel 12 is divided into a first transfer portion 121 and a second transfer portion 122, the two are perpendicular to each other and integrally formed, two transfer angle steels 12 are provided, the two transfer angle steels 12 are located on both sides of the same height of the column 1, and the two first transfer portions 121 of the two transfer angle steels 12 are fixedly connected to the column 1 through the same bolt group, and the two second transfer portions 122 of the two transfer angle steels 12 are fixed to the outer wall of the building through expansion bolts;

[0044] A supporting steel plate 7 is also provided between the nano aerogel felt 61 and the fiber reinforced calcium silicate board 62. A plurality of supporting steel plates 7 are provided at intervals along the length direction of the column 1. In the present embodiment, two supporting steel plates 7 are provided. The supporting steel plates 7 are divided into a fixed portion 71, a first bending portion 72 and a second bending portion 73. The first bending portion 72 and the second bending portion 73 are both vertically integrated on the same side of both ends of the length direction of the fixed portion 71. The length of the first bending portion 72 is greater than the length of the second bending portion 73. The first bending portion 72 is connected to the outer wall of the building through expansion bolts. The first bending portion 72 of the supporting steel plate 7 close to the transition angle steel 12 is connected to the transition angle steel 12 by spot welding. A fixed angle steel 74 is provided on the side of the supporting steel plate 7 close to the second bending portion 73 and away from the bending direction of the second bending portion 73;

[0045] A square tube 621 is also fixedly provided on one side of the fiber reinforced calcium silicate board 62 close to the nano aerogel felt 61. The square tube 621 is provided along the side of the fiber reinforced calcium silicate board 62 close to the nano aerogel felt 61. In the present embodiment, two square tubes 621 are provided, and one of the square tubes 621 is used to support the thermal insulation rock wool 63 at the top of the curtain wall, and the other square tube 621 is used to cooperate with the supporting steel plate 7 to support the fireproof rock wool 64 at the bottom of the curtain wall. In the present embodiment, the materials of the square tube 621 and the supporting steel plate 7 are both 1.5 mm galvanized steel plates.

[0046] In actual use, the setting of the supporting steel plate 7 can bear part of the weight of the thermal insulation rock wool 63 and the fireproof rock wool 64 on the one hand, and on the other hand, the supporting steel plate 7 can be fixed on the transfer angle steel 12, so that the column 1 can bear the load instead, which is beneficial to improve the service life and supporting limit of the supporting steel plate 7. The setting of the transfer angle steel 12 can replace the traditional fixing method of the crossbeam 2. The use of the column 1 to fix the transfer angle steel 12 can prevent the second transfer part 122 from bending and deforming due to excessive tension, which is beneficial to improve the installation strength of the curtain wall and extend the service life of the curtain wall. Finally, the setting of the square tube 621 can support the fireproof rock wool 64 or the thermal insulation rock wool 63, and at the same time, it can also improve the strength of the fiber reinforced calcium silicate board 62 located at the square tube 621.

[0047] Reference Figure 3 and Figure 4A foam rod 52 is embedded between any two adjacent sub-frames 5, and a weather-resistant sealant 31 is filled between any two adjacent metal cover plates 3. The foam rod 52 and the weather-resistant sealant 31 can improve the airtightness of the curtain wall after assembly, and the foam rod 52 and the weather-resistant sealant 31 have a certain elasticity, which can provide a certain micro-motion ability for the curtain wall.

[0048] The implementation principle of a thermal insulation curtain wall for building in an embodiment of the present application is as follows: when the curtain wall needs to be assembled, first fill the columns 1 and the beams 2 with flame-retardant polyurethane foam, then fix the sub-frame 5 on the metal cover plate 3, and adhere the nano aerogel felt 61 to the back of the metal cover plate 3, then install the supporting frames such as the transfer angle steel 12, the supporting steel plate 7 and the square tube 621 on the columns 1, the beams 2 and the fiber-reinforced calcium silicate board 62, and complete the hidden acceptance, finally install the fiber-reinforced calcium silicate board 62 and the metal cover plate 3, and fill the insulation rock wool 63 and the fireproof rock wool 64 between the two, and the curtain wall assembly is now completed.

[0049] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A thermal insulation curtain wall for building, characterized in that: The invention comprises a column (1) and a crossbeam (2), and also comprises a plurality of metal cover plates (3) arranged at intervals, wherein a sub-frame (5) is fixedly provided at the edge of any one of the metal cover plates (3) close to the column (1) and the crossbeam (2), and elastic sealing members are fixedly provided on the column (1) and the crossbeam (2) along their length direction, and the sub-frame (5) forms a snap fit with the corresponding elastic sealing member, and a first aluminum alloy pressing plate (11) is abutted on the column (1) by bolts, and first abutting portions (111) are provided on both sides of the first aluminum alloy pressing plate (11) perpendicular to the length direction of the column (1), and any one of the first abutting portions (111) abuts against the sub-frame (5) of the corresponding metal cover plate (3), and the crossbeam (2) is fixedly provided with an elastic sealing member along its length direction, and the sub-frame (5) forms a snap fit with the corresponding elastic sealing member, and the column (1) is abutted against a first aluminum alloy pressing plate (11) by bolts, and first abutting portions (111) are provided on both sides of the first aluminum alloy pressing plate (11) perpendicular to the length direction of the column (1), and any one of the first abutting portions (111) abuts against the sub-frame (5) of the corresponding metal cover plate (3), and the crossbeam (2) is fixedly provided with an elastic sealing member along its length direction, and the sub-frame (5) forms a snap fit with the corresponding elastic sealing member, and the sub-frame (5) is fixedly provided with an elastic sealing member along its length direction, and the elastic sealing member ... A plurality of second aluminum alloy pressure plates (21) and a supporting angle steel (22) for supporting an upper sub-frame (5) are also arranged at intervals on the beam (2) along its length direction; the second aluminum alloy pressure plates (21) are fastened to the beam (2) by bolts; a second abutting portion (211) is arranged on the lower side of the second aluminum alloy pressure plate (21); the second abutting portion (211) is fastened to the sub-frame (5) of the corresponding metal cover plate (3); abutting protrusions (1111) are arranged on the sides of the first abutting portion (111) and the second abutting portion (211) close to the beam (2) and the column (1); and a heat preservation and thermal insulation layer (6) is filled on the side of the metal cover plate (3) close to the column (1) and the beam (2); The upright posts (1), the cross beams (2) and the auxiliary frames (5) are all made of glass fiber reinforced polyurethane, and the upright posts (1) and the cross beams (2) are filled with flame retardant polyurethane foam; the thermal insulation layer (6) comprises a nano aerogel felt (61), the nano aerogel felt (61) is attached to the metal cover plate (3), and the nano aerogel felt (61) is 40 mm thick; the thermal insulation layer (6) further comprises a fiber reinforced calcium silicate board (62), the fiber reinforced calcium silicate board (62) is arranged on a side of the nano aerogel felt (61) away from the metal cover plate (3), and the fiber reinforced calcium silicate board (62) is 30 mm thick; The column (1) is provided with a transition angle steel (12) for connecting the curtain wall to the concrete body, the transition angle steel (12) comprising a first transition portion (121) and a second transition portion (122), the first transition portion (121) being fixed to the column (1) by a bolt group, and the second transition portion (122) being provided in the form of a protruding fiber-reinforced calcium silicate board (62); A square tube (621) for supporting the fireproof rock wool (64) and the thermal insulation rock wool (63) is fixedly provided between the nano aerogel felt (61) and the fiber-reinforced calcium silicate board (62).

2. A thermal insulation curtain wall for building according to claim 1, characterized in that: A thermal insulation rock wool (63) is arranged between the nano aerogel felt (61) and the fiber-reinforced calcium silicate board (62), and the thermal insulation rock wool (63) is 200 mm thick.

3. A thermal insulation curtain wall for building according to claim 2, characterized in that: A plurality of thermal insulation rock wool (63) are arranged between the nano aerogel felt (61) and the fiber-reinforced calcium silicate board (62), and fireproof rock wool (64) is filled between any two adjacent thermal insulation rock wool (63), wherein the thickness of the fireproof rock wool (64) is equal to the thickness of the thermal insulation rock wool (63).

4. The thermal insulation curtain wall for building according to claim 1, characterized in that: A foam rod (52) is embedded between any two of the nano-aerogel felts (61), and a weather-resistant sealant (31) is provided between any two of the metal cover plates (3).

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