Energy-saving glass composed of multiple pet film hollow components and method for manufacturing the same

Abstract

The present application relates to energy-saving glass composed of multiple PET film hollow components and a preparation method thereof, the energy-saving glass composed of multiple PET film hollow components comprises multiple PET film hollow components with heat preservation performance, and further comprises a first glass, a second glass and spacers; the first glass and the second glass are arranged in parallel, each PET film hollow component is arranged as an independent component between the first glass and the second glass, one PET film hollow component adjacent to the first glass is connected to the first glass through a spacer, one PET film hollow component adjacent to the second glass is connected to the second glass through a spacer, and two adjacent PET film hollow components are connected through a spacer. In the process of radiated thermal energy transfer in multiple chambers, thermal energy is attenuated when passing through the surface of a medium material, so the energy-saving glass composed of multiple PET film hollow components has no less than four PET medium material surfaces, thereby having excellent energy-saving performance.

Description

Technical Field

[0001] This invention relates to the field of insulating glass technology, specifically to an energy-saving glass composed of multiple PET film hollow components and its preparation method. Background Technology

[0002] Currently, there are two types of glass products with membrane structures in the hollow chamber formed by the glass on both sides.

[0003] The first type of manufacturer calls it heat mirror glass. Heat mirror glass is composed of two layers of glass and one or two layers of film containing a coating. The coating of the film is silver or other radiation-resistant materials.

[0004] The process involves attaching a heat-insulating strip to the glass surface, then attaching a heat-reflecting film to the other side of the heat-insulating strip to form a heat-reflecting film assembly. Finally, another piece of glass or another heat-reflecting film assembly is connected with spacers.

[0005] The principle is that the coating on the film resists heat radiation.

[0006] Its advantages include: the coating can be applied to either side of the film, typically on the heat source side; and compared to insulated glass with the same insulation performance, its weight is reduced by 1 / 3 to 1 / 2.

[0007] Its disadvantages are:

[0008] 1. The thermal insulation performance of a single-layer heat mirror film is similar to that of a triple-glazed double-cavity insulated glass unit, but the price is about 5 times that of a triple-glazed double-cavity insulated glass unit. It does not have a significant advantage in thermal insulation performance, and its cost is slightly lower.

[0009] 2. Membranes have high process requirements, are difficult to prepare, are easily oxidized, and need to be kept in a sealed environment.

[0010] 3. Heat shrinking can only be performed after the adhesive has solidified after assembly. The heat mirror film glass itself has good thermal insulation properties, and heat is difficult to conduct to the film surface during heat shrinking. In addition, the film itself has radiation resistance, resulting in low thermal efficiency and high energy consumption.

[0011] The result was that the market found it difficult to accept and its application was not widespread.

[0012] The second type is named by manufacturers as single-pane or double-pane insulated glass. This type of glass is constructed similarly to heat mirror glass, consisting of two layers of glass and one or two layers of film, with no coating on the film.

[0013] The process involves attaching a heat-insulating strip to the glass surface, then attaching the film to the other side of the heat-insulating strip to form a film + glass assembly. Finally, another piece of glass or another film + glass assembly is connected with spacers.

[0014] The principle is the same as that of the first type of glass when using a heat-mirror film, only the manufacturing method is different. When not using a heat-mirror film, the principle is the same as that of insulated glass.

[0015] Its advantages are: compared with insulated glass with the same thermal insulation performance, its weight is reduced by 1 / 3 to 1 / 2.

[0016] Its disadvantages are:

[0017] 1. The thermal insulation performance of a single-layer membrane is similar to that of a triple-glazed double-cavity insulated glass unit, with no significant advantage in thermal insulation performance.

[0018] 2. When two layers of film are installed, its thermal insulation performance is improved by about 10% compared with triple-glazed double-cavity insulated glass.

[0019] 3. A maximum of two membranes can be set to form a three-cavity structure. The number of membranes cannot be increased further, resulting in a slightly lower improvement in thermal insulation performance.

[0020] 4. During heat shrinking, the outer side of the glass does not have a complete tensile structure. During the heat shrinking process, the tension generated by the diaphragm causes the spacer frame to be stressed on one side, making the spacer frame prone to flipping and deformation.

[0021] The result is that the energy-saving advantages are not obvious and cannot meet the increasingly stringent energy-saving standards. Summary of the Invention

[0022] In order to solve one or more technical problems existing in the prior art, the present invention provides an energy-saving glass composed of multiple PET film hollow components and a method for preparing the same.

[0023] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: an energy-saving glass composed of multiple PET film hollow components, including multiple PET film hollow components with heat insulation performance, and further including a first glass, a second glass and a spacer; the first glass and the second glass are arranged in parallel opposite directions, and each PET film hollow component is stacked as an independent component between the first glass and the second glass, a PET film hollow component adjacent to the first glass is connected to the first glass through a spacer, a PET film hollow component adjacent to the second glass is connected to the second glass through a spacer, and two adjacent PET film hollow components are connected through a spacer.

[0024] The beneficial effects of this invention are as follows: The energy-saving glass of this invention employs multiple PET film hollow components, exhibiting excellent thermal insulation performance. The PET film hollow components utilize the corrected refractive index generated during the transmission of radiant heat energy through each layer of light-transmitting material, thereby reducing the radiative heat transfer coefficient (hr) of the light-transmitting materials on both sides of the cavity, thus improving the thermal insulation performance of the PET film hollow components. The principle of the energy-saving glass of this invention is that during the transmission of radiant heat energy through the multi-cavity light-transmitting materials, heat energy attenuation occurs each time it passes through a light-transmitting material surface. The more light-transmitting materials there are, the greater the corrected refractive index, the lower the radiative heat transfer coefficient (hr), and the greater the heat energy attenuation. Therefore, the energy-saving glass composed of multiple PET film hollow components has no fewer than four PET dielectric material surfaces, meaning it undergoes no fewer than four heat energy attenuations, thus exhibiting excellent energy-saving performance.

[0025] Based on the above technical solution, the present invention can be further improved as follows.

[0026] Furthermore, the hollow PET film assembly includes a PET film, a rectangular stainless steel frame, and a rectangular nylon partition frame. The nylon partition frames are fixed to both sides of the stainless steel frame to form an assembly support. PET films are fixed to the sides of the two nylon partition frames opposite to the stainless steel frame. The inner ring side of the stainless steel frame, the inner ring side of the nylon partition frames, and the two PET films together form a sealed cavity.

[0027] Furthermore, the stainless steel plate frame has a T-shaped cross-section, and the head of the T-shaped structure is located on the outer ring edge of the stainless steel plate frame.

[0028] Furthermore, the nylon partition frame is adhered to both sides of the stainless steel plate frame with adhesive, and the PET film is adhered to the nylon partition frame with adhesive.

[0029] Furthermore, the cavity is filled with an inert gas, and the concentration of the inert gas is ≥90%.

[0030] Furthermore, the edges of both the first and second glass extend beyond the edges of the multiple PET film hollow components, and the extended portions form an annular groove with the PET film hollow components, the annular groove being filled with structural adhesive.

[0031] The beneficial effects of adopting the above-mentioned further solutions are: the filling of structural adhesive helps to form a complete energy-saving glass and ensures the sealing performance of the cavity.

[0032] Furthermore, the spacer includes a rigid plastic spacer; or the spacer includes a stainless steel plate and nylon partitions, wherein the nylon partitions are provided on both sides of the stainless steel plate, and the stainless steel plate is sandwiched between the two nylon partitions.

[0033] The method for preparing the above-mentioned PET film hollow module includes the following steps:

[0034] Stainless steel strips are cut to length and then rolled into stainless steel plates with a T-shaped cross-section using a roll forming equipment.

[0035] The stainless steel sheet is cut at a 45° angle and welded diagonally to form a rectangular stainless steel frame. The T-shaped structure of the stainless steel sheet is located on the outer ring side of the rectangular stainless steel frame.

[0036] Cut the nylon partition to a 45° angle and weld diagonally to form a rectangular nylon partition frame;

[0037] Two rectangular nylon partition frames are arranged in parallel, and a stainless steel plate frame is placed between the two nylon partition frames. Adhesive is applied to both the side of the nylon partition frame facing the stainless steel plate frame and the side of the stainless steel plate frame facing the nylon partition frame. The two nylon partition frames and one stainless steel plate frame are firmly bonded together to form a component support.

[0038] Flatten the clamps on the PET film, cut it at 90° to the required size, and clean and remove dust. Then arrange the two PET films in parallel and place the component bracket between the two PET films. The nylon partition frame of the component bracket is coated with adhesive. The two PET films are firmly bonded to the nylon partition frame of the component bracket by adhesive, and a sealed cavity is formed between the two PET films.

[0039] After fixing two PET films to the component bracket, they are placed in a heating furnace for heating. The PET films are then heated and flattened, and then removed and cooled to set, thus obtaining the hollow PET film component.

[0040] A method for preparing energy-saving glass composed of multiple hollow PET film components includes the following steps:

[0041] Adhere the spacer to one side of the first glass and press it firmly to bond it in place;

[0042] Adhere the spacer to one side of the second glass and press it firmly to secure it;

[0043] Multiple hollow PET film components are bonded and fixed together using spacers to form a hollow structure.

[0044] The two sides of the hollow structure are then bonded to the spacers of the first glass and the second glass, respectively, to obtain the energy-saving glass composed of multiple PET film hollow components.

[0045] Furthermore, after bonding the two sides of the hollow structure to the spacers of the first glass and the second glass respectively, the method further includes: filling the hollow structure with inert gas and filling the periphery of the multiple PET film hollow components with structural adhesive.

[0046] Furthermore, the manufacturing process of the PET film hollow component is as follows: nylon partition frames are bonded to both sides of a stainless steel plate frame, butyl adhesive is coated on the two nylon partition frames and a PET light-transmitting film is laid on them, and the PET film hollow component is obtained after heat shrinking in an oven. Attached Figure Description

[0047] Figure 1 This is a top view of the hollow PET film assembly of the present invention.

[0048] Figure 2 This is a cross-sectional view of the hollow PET film assembly of the present invention.

[0049] Figure 3 This is a schematic diagram of the front view of the first glass and PET film hollow assembly of the present invention.

[0050] Figure 4 for Figure 3 A schematic diagram of the cross-sectional structure of AA from its separate parts to its assembled parts;

[0051] Figure 5 This is a schematic front view of the structure of the first glass, the second glass, and the hollow PET film assembly of the present invention. Figure 1 ;

[0052] Figure 6 for Figure 5 A schematic diagram of the cross-sectional structure of AA from its separate parts to its assembled parts;

[0053] Figure 7 This is a schematic diagram of the main structure of the stainless steel plate frame of the present invention;

[0054] Figure 8 This is a schematic diagram of the main structure of the nylon partition frame of the present invention;

[0055] Figure 9 This is a schematic front view of the structure of the first glass, the second glass, and the hollow PET film assembly of the present invention. Figure 2 ;

[0056] Figure 10 for Figure 9 Schematic diagram of the cross-sectional structure of AA;

[0057] Figure 11 for Figure 10 A magnified structural diagram of part A in the middle.

[0058] The attached diagram lists the components represented by each number as follows:

[0059] 1. First glass; 11. First rim; 2. Second glass; 21. Second rim;

[0060] 3. PET film hollow component; 31. PET film; 32. Stainless steel frame; 33. Nylon partition frame; 34. Cavity; 4. Rigid plastic spacer; 41. Stainless steel plate; 42. Nylon partition; 5. Structural adhesive; 6. Butyl rubber layer. Detailed Implementation

[0061] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0062] like Figures 1 to 11 The energy-saving glass constructed from multiple PET film hollow components in this embodiment includes multiple PET film hollow components 3 with heat-insulating properties, as well as a first glass 1, a second glass 2, and spacers. The first glass 1 and the second glass 2 are arranged in parallel opposite directions. Each PET film hollow component 3 is stacked as an independent component between the first glass 1 and the second glass 2. A PET film hollow component 3 adjacent to the first glass 1 is connected to the first glass 1 by a spacer, and a PET film hollow component 3 adjacent to the second glass 2 is connected to the second glass 2 by a spacer. Adjacent PET film hollow components 3 are connected by a spacer. The first glass 1 and the second glass 2 are flat clear glass, and their thickness, surface treatment, and whether they are tempered are selected as needed.

[0063] like Figure 2 , Figure 4 , Figure 6 , Figure 10 and Figure 11 As shown, the PET film hollow assembly 3 of this embodiment includes a PET film 31, a rectangular stainless steel frame 32, and a rectangular nylon partition frame 33. The nylon partition frames 33 are fixed to both sides of the stainless steel frame 32 to form an assembly support. PET films 31 are fixed to the side of the two nylon partition frames 33 facing away from the stainless steel frame 32. The inner ring side of the stainless steel frame 32, the inner ring side of the nylon partition frames 33, and the two PET films 31 together form a sealed cavity 34.

[0064] One preferred embodiment of this solution is as follows: Figure 4 and Figure 6 As shown, the cross-section of the stainless steel plate frame 32 is T-shaped, and the head of the T-shaped structure is located on the outer ring edge of the stainless steel plate frame 32.

[0065] Specifically, the nylon partition frame 33 is adhered to both sides of the stainless steel frame 32 using an adhesive, and the PET film 31 is adhered to the nylon partition frame 33 using an adhesive. More preferably, the adhesive is a butyl rubber layer, such as... Figure 2 , Figure 4 , Figure 6 , Figure 10 and Figure 11 As shown, a butyl adhesive layer 6 is bonded between the PET film 31 and the nylon partition frame 33, and a butyl adhesive layer 6 is also bonded between the nylon partition frame and the stainless steel frame. The butyl adhesive layers achieve a sealed connection between the PET film and the nylon partition frame, and between the nylon partition frame and the stainless steel frame. The thickness of the butyl adhesive layer 6 is 0.4–2 mm, and 1 mm is optional.

[0066] This embodiment provides several optional assembly structures between the stainless steel plate frame and the nylon partition frame: the first type, such as... Figure 2 , Figure 4 , Figure 6 , Figure 10 and Figure 11 As shown, in one configuration, the inner edge of the stainless steel frame 32 is flush with the inner edge of the nylon partition frame 33, and the outer edge of the stainless steel frame 32 extends beyond the outer edge of the nylon partition frame 33. In another configuration, the inner edge of the stainless steel frame 32 is flush with the inner edge of the nylon partition frame 33, and the outer edge of the nylon partition frame 33 extends beyond the outer edge of the stainless steel frame 32, allowing the outer edge of the nylon partition frame 33 to wrap around the outer edge of the stainless steel frame 32. In a third configuration, the inner edge of the stainless steel frame 32 is flush with the inner edge of the nylon partition frame 33, and the outer edge of the nylon partition frame 33 is flush with the outer edge of the stainless steel frame 32. Of course, similarly, the inner edges of the stainless steel frame 32 and the nylon partition frame 33 can also be non-flush.

[0067] like Figure 2 , Figure 4 , Figure 6 , Figure 10 and Figure 11 As shown, the outer periphery of the PET film 31 extends beyond the outer ring of the nylon partition frame 33.

[0068] In this embodiment, the stainless steel frame 32 has a thickness of 1-4mm, with options including 1mm, 2mm, 3mm, 3.5mm, and 4mm. It can be manufactured using stainless steel strips. The stainless steel strips need to be flattened first, then cut according to design requirements, and the cut points are ground to remove burrs. The cross-section of the stainless steel strip is T-shaped to facilitate the bonding of polyurethane structural adhesive during glass assembly. The stainless steel strips are spliced ​​at a 45° angle and fixed by welding. During welding, the stainless steel plates need to be clamped with a mold to prevent strain after heating and to ensure the flatness of the "stainless steel frame". After the weld joints cool, the weld points are cleaned and ground smooth to ensure the surface flatness of the stainless steel plates. Finally, they are dusted and degreased before acceptance and use.

[0069] The nylon partition frame 33 in this embodiment is made of nylon 66. The thickness of the frame is determined according to the thickness of the gas chamber, with a minimum of 2mm and a maximum of 6mm. 3mm, 4mm, and 5mm thicknesses are also available. The nylon partition frame is formed by casting or extrusion. It is cut at a 45° angle according to design requirements and clamped and fixed using a frame assembly machine. Corner joints are fixed by hot-melt welding or bonding. When using hot-melt welding, the weld joint is ground smooth after cooling to ensure the surface flatness of the nylon partition frame. Finally, it is dusted and degreased before acceptance and use.

[0070] In this embodiment, during the processing of the PET film hollow assembly, nylon partition frames 33 are glued to both sides of the stainless steel frame 32. Then, a high-transparency PET film is stretched taut and flattened using a stretching device and laid onto the nylon partition frames 33, and pressed firmly using a rolling device. The assembly is then flipped over, and butyl adhesive is applied to another nylon partition frame. Another high-transparency PET film is stretched taut and flattened using a special stretching device and laid onto the nylon partition frame, then pressed firmly using a rolling device to form a "PET film hollow assembly." The "PET film hollow assembly" is then placed in a hot oven to heat-shrink the high-transparency PET film, forming a PET film. After passing inspection, it is ready for use. The total thickness of the PET film hollow assembly is 7-10 mm, preferably 8.2 mm or 9 mm. Through heat shrinking and flattening, the heat transfer coefficient of the "PET film hollow assembly" is K = 2.59 W / (m²). 2 ·K), compared to the heat transfer coefficient of a single pane of glass (6mm thick K=5.7W / (m) 2 ·K), 8mm thickness K=5.67W / (m) 2 ·K)) is about 55% lower.

[0071] Energy transfer is categorized into radiation transfer, conduction transfer, and convection transfer. Radiation transfer is the transfer of energy through rays in the form of radiation. In this embodiment, the PET film hollow module utilizes the corrected refractive index generated by the refraction of sunlight during transmission through the light-transmitting material. This reduces the radiation heat transfer coefficient (hr) of the light-transmitting material on both sides of the cavity, thereby improving the thermal insulation performance of the PET film hollow module. Based on the K-value calculation of the above PET film hollow module, the formula for the radiation heat transfer coefficient of the light-transmitting material on both sides of the gas cavity is... In this context, δ and Tm are constants and definite values, and only the corrected refractive index (ε) determines the radiative heat transfer coefficient h of the light-transmitting materials on both sides of the gas cavity. r The value of h is calculated, and the corrected refractive index (ε) of each membrane layer is taken into account. The more membrane layers there are, the higher the radiative heat transfer coefficient h. r The smaller.

[0072] like Figure 2 , Figure 4 , Figure 8 and Figure 9As shown, the four edges of the first glass 1 extend beyond the four edges of the multiple PET film hollow components 3, and the extended portion forms a first ring edge 11; the four edges of the second glass 2 extend beyond the four edges of the multiple PET film hollow components 3, and the extended portion forms a second ring edge 21; an annular groove is formed between the first ring edge 11 and the second ring edge 21, and the annular groove is filled with structural adhesive 5. The filling of the structural adhesive helps to form a complete energy-saving glass and ensures the sealing performance of the cavity. The structural adhesive 5 can be polyurethane structural adhesive. The cavity can be filled with an inert gas, such as nitrogen or argon, with a concentration of ≥90%. Holes can be drilled at the sealing points of each cavity to inject inert gas into the cavity, and then the injection holes can be sealed after completion.

[0073] The spacer in this embodiment has two specific implementations, as follows:

[0074] Specific implementation method one, such as Figure 2 and Figure 4 As shown, the spacer includes a rigid plastic spacer 4;

[0075] Specific implementation method two, such as Figure 10 and Figure 11 As shown, the spacer includes a stainless steel plate 41 and nylon partitions 42. Nylon partitions 42 are provided on both sides of the stainless steel plate 41, and the stainless steel plate 41 is sandwiched between two nylon partitions 42. Both the stainless steel plate 41 and the nylon partitions 42 are annular structures, which can be integral annular structures, or annular structures formed by welding multiple stainless steel plates 41 or connecting multiple nylon partitions 42. The preparation process of the stainless steel plate 41 and nylon partitions 42 can refer to the preparation process and thickness parameters of the stainless steel frame 32 and nylon partition frame 33 in Example 1. The stainless steel plate has a larger external dimension than the nylon partitions. When polyurethane structural adhesive is applied around the glass for fixation, the structural adhesive connects and fixes the glass to the stainless steel plate, enhancing resistance to the thermal shrinkage stress of the PET high-transmittance film. The nylon partitions 42 are solid structures and do not contain molecular sieves.

[0076] Preferred, such as Figure 2 and Figure 4 As shown, the rigid plastic spacer 4 has a hollow structure.

[0077] More preferably, the spacer has a ring-shaped structure. The spacer has certain mechanical properties and thermal insulation properties.

[0078] Optionally, both the first glass 1 and the second glass 2 are tempered glass.

[0079] This embodiment also provides a method for preparing the above-mentioned hollow PET film component, including the following steps:

[0080] Stainless steel strips are cut to length and then rolled into stainless steel plates with a T-shaped cross-section using a roll forming equipment.

[0081] The stainless steel sheet is cut at a 45° angle and welded diagonally to form a rectangular stainless steel frame. The T-shaped structure of the stainless steel sheet is located on the outer ring side of the rectangular stainless steel frame.

[0082] Cut the nylon partition to a 45° angle and weld diagonally to form a rectangular nylon partition frame;

[0083] Two rectangular nylon partition frames are arranged in parallel, and a stainless steel plate frame is placed between the two nylon partition frames. Adhesive is applied to both the side of the nylon partition frame facing the stainless steel plate frame and the side of the stainless steel plate frame facing the nylon partition frame. The two nylon partition frames and one stainless steel plate frame are firmly bonded together to form a component support.

[0084] Flatten the clamps on the PET film, cut it at 90° to the required size, and clean and remove dust. Then arrange the two PET films in parallel and place the component bracket between the two PET films. The nylon partition frame of the component bracket is coated with adhesive. The two PET films are firmly bonded to the nylon partition frame of the component bracket by adhesive, and a sealed cavity is formed between the two PET films.

[0085] After fixing two PET films to the component bracket, they are placed in a heating furnace for heating. The PET films are then heated and flattened, and then removed and cooled to set, thus obtaining the hollow PET film component.

[0086] A method for preparing energy-saving glass composed of multiple hollow PET film components includes the following steps:

[0087] Adhere the spacer to one side of the first glass and press it firmly to bond it in place;

[0088] Adhere the spacer to one side of the second glass and press it firmly to secure it;

[0089] Multiple hollow PET film components are bonded and fixed together using spacers to form a hollow structure.

[0090] The two sides of the hollow structure are then bonded to the spacers of the first glass and the second glass, respectively, to obtain the energy-saving glass composed of multiple PET film hollow components.

[0091] Furthermore, after bonding the two sides of the hollow structure to the spacers of the first glass and the second glass respectively, the method further includes: filling the hollow structure with inert gas and filling the periphery of the multiple PET film hollow components with structural adhesive.

[0092] In the specific manufacturing process of the energy-saving glass in this embodiment, after the glass is formed, butyl adhesive is used to attach spacers to the glass surface. Butyl adhesive is also applied to the other side of the spacers, and a "hollow membrane assembly" is bonded to the spacers to form a "half-glass component." The spacers are then bonded to the "hollow membrane assembly" side with butyl adhesive, and butyl adhesive is applied to the spacers. Another "half-glass component" is placed on the butyl adhesive, inert gas is injected into the gas chamber, and polyurethane structural adhesive is used to fill the pores around the glass. After the adhesive dries, it is inspected and stored. The "PET hollow membrane assembly," as the core component of the "energy-saving glass composed of multiple PET hollow membrane assemblies," replaces glass and features light weight, low heat transfer coefficient, and good light transmittance. The high-transmittance PET film is ultra-thin, ultra-light, highly transparent, and has heat-shrinking properties. Its light transmittance reaches 95%, which is about 12% higher than the 83% light transmittance of glass.

[0093] The energy-saving glass of this embodiment uses multiple hollow PET film components, exhibiting excellent thermal insulation performance. The "energy-saving glass composed of multiple hollow PET film components" has glass on both sides. By adding multiple layers (≥4 layers) of high-transmittance PET film in the middle of the glass, the number of times the refractive index (ε) is corrected is increased. This allows radiation transfer to accumulate multiple corrected refractive indexes as it passes through the multiple transparent media, reducing the radiative heat transfer coefficient hr and thus lowering the K-value of the energy-saving glass. The cavity thickness should not exceed 15mm to avoid gas convection that could reduce thermal insulation performance. The multiple layers (≥4 layers) of high-transmittance PET film and glass form multiple gas chambers (≥5). This multiple gas chamber structure increases the total thickness of the gas chambers without gas convection, thereby improving thermal insulation performance. Furthermore, it has advantages such as low heat transfer coefficient, light weight, high light transmittance (the light transmittance of the high-transmittance PET film is 95%, while the light transmittance of glass is approximately 83%), and low price.

[0094] The energy-saving glass in this embodiment is used for outdoor energy-saving doors and windows: In door and window projects, the glass area accounts for about 85% of the total area of ​​doors and windows, so reducing the heat transfer coefficient of the glass plays a decisive role in the overall thermal insulation performance of doors and windows. The low heat transfer coefficient of the "energy-saving glass composed of multiple PET film hollow components" allows it to significantly improve the overall thermal insulation effect of the window when applied to energy-saving doors and windows. For glass curtain walls: In commercial buildings and high-end residential projects, glass curtain walls are often used for exterior wall decoration. When the "energy-saving glass composed of multiple PET film hollow components" is applied to glass curtain walls, it can improve the building's thermal insulation performance and reduce building energy consumption.

[0095] Test case

[0096] The performance of energy-saving glass is calculated using two PET film hollow components, a first glass and a second glass, and spacers (stainless steel plate 41 and nylon spacer 42).

[0097] Specifically, the energy-saving glass consists of a 2-glass, 4-film, 5-cavity structure composed of two "PET film hollow components" and two Low-E glass sheets, namely 5 Low-E + 8 argon gas + 0.1 PET film + 8 argon gas + 0.1 PET film + 8 argon gas + 0.1 PET film + 8 argon gas + 0.1 PET film + 8 argon gas + 5 Low-E (this description is a layered description of the finished glass; from one side of the glass to the other, they are: a 5mm thick Low-E single glass, an 8mm thick gas layer (filled with argon gas), and a 0.1mm thick... The structure consists of a PET film, an 8mm thick gas layer (filled with argon), a 0.1mm thick PET film, an 8mm thick gas layer (filled with argon), a 0.1mm thick PET film, an 8mm thick gas layer (filled with argon), a 0.1mm thick PET film, an 8mm thick gas layer (filled with argon), and a 5mm thick Low-E single-pane energy-saving glass. The total thickness is 50.4mm, and the weight is approximately 26kg / m². The glass thickness is 5mm, the PET light-transmitting film thickness is 0.1mm, and the thickness of each individual gas chamber is 8mm. The gas chambers are filled with argon, with an argon concentration ≥90%. The calculation of its heat transfer coefficient K should follow the relevant calculation methods for "external wall lighting and thermal insulation components".

[0098] The heat transfer coefficient K of the aforementioned energy-saving glass is 0.56 W / (m²). 2 ·K).

[0099] According to Table C.5.3-3 on page 112 of the "Code for Thermal Design of Civil Buildings" GB50176-2016, the heat transfer coefficient K of triple-glazed insulated glass is 1.01 W / (m²). 2 ·K), total thickness 42mm, weight 46kg / m 2 The heat transfer coefficient of "energy-saving glass composed of multiple PET film hollow components" is 45% lower than that of triple-glazed insulated glass with 6 Low-E + 12 argon + 6 + 12 air + 6 glass.

[0100] In contrast, the double-glazed unit uses a quadruple-pane, triple-cavity double-glazed unit with 5 Low-E + 9 argon gas + 5 + 9 argon gas + 5 + 9 argon gas + 5 Low-E, with a total thickness of 47mm and a weight of approximately 51kg / m². 2 The glass is filled with argon gas, and the density of argon gas is...

[0101] The heat transfer coefficient of "energy-saving glass composed of hollow components" is 25% lower than that of 5Low-E+9argon+5+9argon+5+9argon+5Low-E quad-glazed insulated glass.

[0102] Furthermore, the heat transfer coefficient K = 1.5 W / (m²) is higher than that of "5 Low-E glass + 12 argon gas + 5 clear glass" insulated glass. 2 K) is 62.67% lower.

[0103] The weight of the energy-saving glass, consisting of "5 Low-E glass + 8 argon gas + 8.2 PET film hollow module + 8 argon gas + 8.2 PET film hollow module + 8 argon gas + 5 Low-E glass", is approximately 26 kg / m². 2 It weighs 30 kg / m³ more than a double-glazed unit consisting of "5 Low-E glass + 12 argon gas + 5 clear glass". 2 Lighter than 13.33%. This is 45 kg / m² lighter than a triple-glazed insulated glass unit consisting of 5 Low-E glass + 12 argon gas + 5 clear glass + 12 air + 5 clear glass. 2 Lighter than 42.22%. It weighs 50 kg / m² more than a quadruple-glazed insulated glass unit consisting of "5 Low-E glass + 9 argon gas + 5 clear glass + 9 argon gas + 5 clear glass + 9 argon gas + 5 Low-E glass". 2 Lighter than 48%.

[0104] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0105] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0106] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0107] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0108] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0109] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. Energy saving glass consisting of a plurality of PET film hollow components, characterized in that, The energy-saving glass is composed of a plurality of PET film hollow assemblies with heat preservation performance, a first glass, a second glass and spacers, wherein the first glass and the second glass are arranged in parallel, each PET film hollow assembly is arranged as an independent component between the first glass and the second glass, one PET film hollow assembly adjacent to the first glass is connected to the first glass through the spacer, one PET film hollow assembly adjacent to the second glass is connected to the second glass through the spacer, and two adjacent PET film hollow assemblies are connected through the spacer. The PET film hollow assembly comprises a PET film, a rectangular stainless steel plate frame and a rectangular nylon partition plate frame, the two sides of the stainless steel plate frame are fixed with the nylon partition plate frame to form an assembly support, the PET film is fixed on the side of the nylon partition plate frame away from the stainless steel plate frame, and the inner ring side of the stainless steel plate frame and the inner ring side of the nylon partition plate frame and the two PET films form a sealed cavity. The cross section of the stainless steel plate frame is in T-shaped structure, and the head of the T-shaped structure is arranged on the outer ring side of the stainless steel plate frame. The nylon partition plate frame is pasted on the two sides of the stainless steel plate frame through an adhesive, and the PET film is pasted on the nylon partition plate frame through an adhesive.

2. The energy-saving glass composed of a plurality of PET film hollow components according to claim 1, characterized in that, The cavity is filled with inert gas, and the concentration of the inert gas is greater than or equal to 90%.

3. The energy saving glass consisting of a plurality of PET film hollow components according to claim 1, characterized in that, The four edges of the first glass and the second glass exceed the four edges of the plurality of PET film hollow assemblies, and the excess part forms an annular groove with the PET film hollow assembly, and the annular groove is filled with structural adhesive.

4. The energy saving glass consisting of a plurality of PET film hollow components according to claim 1, characterized in that, The spacer comprises a hard plastic spacer, or the spacer comprises a stainless steel plate and a nylon partition plate, the two sides of the stainless steel plate are provided with the nylon partition plate, and the stainless steel plate is clamped between the two nylon partition plates.

5. The method of producing energy-saving glass consisting of a plurality of PET film hollow components according to any one of claims 1 to 4, characterized in that, The method comprises the following steps: The first glass is adhered to the spacer on one side, and the spacer is compacted and adhered firmly; The second glass is adhered to the spacer on one side, and the spacer is compacted and adhered firmly; The plurality of PET film hollow assemblies are adhered and fixed firmly through the spacer to form a hollow structure; The two sides of the hollow structure are adhered to the spacers of the first glass and the second glass respectively to obtain the energy-saving glass composed of the plurality of PET film hollow assemblies.

6. The preparation method according to claim 5, characterized in that, After the two sides of the hollow structure are adhered to the spacers of the first glass and the second glass respectively, the method further comprises the following steps: filling the hollow structure with inert gas, and filling the plurality of PET film hollow assemblies with structural adhesive.

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