Passive aluminum alloy fireproof door for near-zero energy consumption building

Abstract

The invention provides a near-zero-energy-consumption passive aluminum alloy fireproof door for a building. According to the near-zero-energy-consumption passive aluminum alloy fireproof door for the building, the steel panel, the fireproof glue layer, the fireproof plate, fireproof expansion graphene rods, a fireproof lock body, a composite nanometer heat insulation rod, fireproof foaming, fireproof expansion strips and other structures are arranged, the steel panel has high strength and impact resistance, and the inner side fireproof glue layer tightly adheres to the steel panel and the fireproof plate; the fireproof plate is excellent in high-temperature resistance and flame retardance, flame and heat are prevented from penetrating through the door body, the side, away from fire, of the door body is protected, the fireproof expansion graphene rods and the fireproof expansion strips rapidly expand when meeting high temperature, gaps are filled, the supporting structure and the fireproof lock body ensure that the door is tightly closed during a fire disaster, and fire spreading is completely eradicated; the composite nanometer heat insulation rod efficiently blocks indoor and outdoor heat exchange by utilizing the characteristics of a nanometer material, and the fireproof foam fills the outer side and expands when heated to block a door crack.

Description

Technical Field

[0001] The present invention relates to the technical field of fireproof doors, and more particularly to a passive aluminum alloy fireproof door for a near-zero energy consumption building. Background Art

[0002] In the field of modern architecture, fire doors play a pivotal role. As a key building fire protection facility, they are widely distributed in important parts such as passages, stairwells, and machine rooms of various buildings. They are an important line of defense to prevent the spread of fire and protect the safety of life and property. Once a fire breaks out, fire doors can effectively block the spread of flames, heat, and toxic smoke, creating a precious time window for personnel evacuation and fire rescue. Its fire protection significance is self-evident. At the same time, with the increasingly severe global energy situation and people's deepening understanding of the concept of sustainable development, building energy conservation has become one of the core demands of the current development of the construction industry. In recent years, my country has vigorously advocated reducing building energy consumption and striving to create a green and low-carbon building environment. Under this trend, the thermal insulation performance of the building envelope structure has been raised to an unprecedented level, because the envelope structure is the main channel for indoor and outdoor heat exchange, and its performance directly determines the overall energy consumption level of the building.

[0003] However, existing fire doors for near-zero energy buildings have the following problems when in use: Traditional fire doors are mostly made of steel. Although steel has many advantages such as high strength and high stability, and can effectively resist flames in the early stage of fire prevention with its own high temperature resistance, its thermal conductivity is extremely high. This means that in daily use, especially when the building is in the heating season or cooling season, the heat between indoor and outdoor will easily be exchanged through the steel fire door. In the cold winter, the warm air in the room will quickly dissipate to the cold outdoors through the steel fire door, causing the indoor temperature to drop sharply. The heating system has to continue to increase the load to maintain a comfortable temperature, which leads to a huge waste of energy; in the hot summer, the high temperature heat wave outside will penetrate the steel fire door without hindrance and pour into the room, making the indoor air conditioning and refrigeration system exhausted, which also causes a lot of energy consumption. When faced with the increasingly high building energy-saving standards today, the disadvantages of traditional steel fire doors in thermal insulation performance are becoming more and more prominent, and it is difficult to meet the dual requirements of low energy consumption and high thermal insulation of buildings. This is not only contrary to the energy conservation advocated, but also unable to provide users with a comfortable and energy-saving indoor environment.

[0004] The present invention can effectively block the spread of flames, heat and toxic smoke by relying on structures such as fireproof panels, fireproof expanded graphene rods, fireproof expansion strips, fireproof foaming and high-temperature resistant fireproof lock bodies, thereby buying time for personnel evacuation and fire rescue and ensuring the safety inside the building. In terms of thermal insulation, the composite nano-insulation rods and the broken bridge aluminum alloy structure work together to greatly reduce indoor and outdoor heat exchange, help near-zero energy buildings achieve energy saving and consumption reduction, maintain a comfortable indoor temperature environment, and improve their safety, energy saving and applicability. Summary of the invention

[0005] The present invention aims to solve the technical problems raised by the above-mentioned background technology and provide a passive aluminum alloy fire door for a near-zero energy consumption building.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: A passive aluminum alloy fire door for a near-zero energy building, comprising: a passive fan, an active fan is arranged on one side of the passive fan, a fireproof lock body is detachably connected between the passive fan and the active fan, composite nano-insulation rods are fixedly installed inside the passive fan and the active fan, surface-mounted hinges are connected to the top of the passive fan and the active fan, the surface-mounted hinges are connected to the passive fan and the active fan through hinge connecting bolts, M4 nuts are arranged on the outer sides of the passive fan and the active fan, the outer sides of the passive fan and the active fan are filled with fireproof foam, the M4 nuts are arranged above the fireproof foam, and fireproof expansion strips are arranged below the composite nano-insulation rods.

[0007] A further preferred solution: steel panels are fixedly installed on the outer surfaces of the passive fan and the active fan, a fireproof adhesive layer is fixedly installed on the inner side of the steel panel, and a mechanical connection is achieved on the profile frame through studs and nuts, a fireproof board is fixedly installed on the inner side of the fireproof adhesive layer, the fireproof board is the innermost layer, and the inner side is fixedly connected to the passive fan and the active fan.

[0008] A further preferred solution: the outer sides of the passive fan and the active fan are respectively fixedly installed with a frame connecting piece and a fan frame connecting piece, the upper ends of the frame connecting piece and the fan frame connecting piece are threadedly connected with pan head self-tapping screws, and the pan head self-tapping screws are respectively threadedly connected to the passive fan and the active fan.

[0009] A further preferred solution: fireproof expanded graphene rods are provided in the middle of the passive fan and the active fan.

[0010] A further preferred solution: a bent lock sheet is provided on one side of the fireproof lock body, and a fireproof lock core is provided on the other side of the fireproof lock body. Beneficial Effects

[0011] 1. Through the arrangement of steel panels, fireproof adhesive layers and fireproof boards, the steel panel as the outermost layer can directly withstand the burning of flames in the early stage of fire, and block the rapid advancement of flames with its own strength, so as to gain reaction time for the subsequent protective layer, and greatly delay the process of the fire contacting the key structures inside the door body. The fireproof adhesive layer is in the middle. On the one hand, it uses its viscosity to firmly fix the steel panel and the fireproof board to form a tight overall structure, avoiding separation and loosening of the layers under high temperature impact, daily vibration or external force collision, and ensuring the integrity of the door; on the other hand, the fireproof adhesive itself contains flame retardant ingredients. When encountering high temperature, it will not burn and decompose quickly like ordinary glue, but will form a layer The dense carbonized layer is like a "speed bump" for the flame, effectively preventing the flame from spreading to the inside through the tiny gaps between the layers, cutting off the possible penetration path of the fire. As the last line of defense directly facing the interior of the building, the fireproof board is usually made of boards with high-efficiency fire retardants added. These flame retardants can react chemically at high temperatures, absorb heat, release non-combustible gases, dilute the surrounding oxygen concentration, and fundamentally inhibit the burning of the flame. The fireproof board has excellent high temperature resistance and can withstand the scorching of the flame for a long time without being easily broken through, blocking most of the heat outside, preventing the fire from surging into the building through the door body, and creating a relatively safe space for personnel escape and fire rescue; 2. By setting up a fireproof lock body, when a fire occurs, the primary task of the fireproof lock body is to keep the door closed. The fireproof lock core inside it has a special high-temperature resistant design and is usually made of fire-resistant metal materials or composite materials with flame-retardant components added. Even if the ambient temperature rises sharply and reaches the high-temperature threshold where ordinary lock cores may fail, the fireproof lock core can still work normally, resolutely preventing the door from being accidentally opened due to heat deformation, lock failure, etc., thereby effectively blocking the fire, smoke and toxic gases from spreading into the building, and buying precious time for personnel evacuation and fire rescue. The bent lock piece on one side of the fireproof lock body plays a vital role, preventing the lock piece from being scratched by the flashing edges and corners of the lock piece when people pass through the fire door, causing injuries or financial losses. At the same time, the bent lock piece fits better with the profile to avoid loosening and falling off due to long-term use. The connection between it and the door body has been carefully designed, and reliable methods such as high-strength bolt connection or riveting are adopted to ensure that the connection between the lock body and the door body will not loosen or fall off under high temperature impact. This stable connection enables the fireproof lock body to better withstand the external force impact caused by the flame and continue to play its key role in preventing the spread of fire; 3. The composite nano thermal insulation rod is provided. The composite nano thermal insulation rod utilizes the unique physical properties of nano materials. The atoms or molecules in the nano-scale materials are arranged more closely, the grain boundaries increase, and the heat conduction path becomes extremely complex and tortuous. When heat tries to be conducted from one side of the door to the other side, the nano particles continuously scatter and reflect the heat, making it difficult for the heat flow to pass smoothly, greatly reducing the heat conduction efficiency. For example, the common aerogel nano thermal insulation material has a very high porosity and is filled with a large number of nano-level pores. The air molecules are restricted from moving in these tiny spaces, and heat convection can hardly occur, and heat transfer is blocked, thereby achieving efficient insulation. The thermal insulation rod is installed inside the passive fan and the active fan, just like Like an invisible "heat barrier", it effectively blocks the direct exchange of heat between indoor and outdoor. In summer, when the outdoor heat is unbearable, strong solar radiation heat and high-temperature air try to invade the indoor through the door body. The composite nano heat insulation rod can intercept most of the heat outside, so that the indoor environment maintains a cool and comfortable environment, reduces the load of the air-conditioning refrigeration system, and reduces the energy consumption of the building; in winter, it can prevent the warm air in the room from leaking to the cold outdoors, play a role in heat preservation, reduce the pressure on heating equipment, and also help save energy and reduce consumption. It truly meets the strict requirements of near-zero energy buildings for extremely low heat transfer. At the same time, it complements each other in space with fire-proof components such as fire-proof foaming and fire-proof expansion strips, which not only ensures the heat insulation effect, but also does not affect the fire-proof function; 4. In summary, this kind of passive aluminum alloy fireproof door for near-zero energy consumption buildings is equipped with steel panels, fireproof adhesive layers, fireproof boards, fireproof expanded graphene rods, fireproof lock bodies, composite nano-insulation rods, fireproof foaming and fireproof expansion strips. The steel panels have high-strength impact resistance and can withstand daily collisions and fire burns. The inner fireproof adhesive layer tightly bonds the steel panels and the fireproof boards to strengthen the integrity of the structure. It also has flame-retardant properties and delays the penetration of fire. The fireproof boards are the core inner layer, with excellent high temperature resistance, Flame retardant properties prevent flames and heat from invading the interior of the building. Fire-proof expanded graphene rods and fire-proof expanded strips expand rapidly when exposed to high temperatures, filling gaps and supporting structures to prevent deformation and collapse. The fire-proof lock body adopts a special design. The high-temperature resistant lock core and bent lock piece ensure that the door is closed in case of fire to prevent the spread of fire. The internal composite nano-insulation rods use the characteristics of nanomaterials to effectively block the heat exchange between indoor and outdoor. In addition, the fire-proof foam fills the outside and expands when heated to seal the door gap, thereby comprehensively improving the door's fire prevention, heat insulation, stability and energy-saving performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0013] Figure 2 It is a schematic diagram of the hinge and heat insulation rod structure of the present invention.

[0014] Figure 3 It is a schematic diagram of the connecting piece structure of the present invention.

[0015] Figure 4 It is a schematic diagram of the structure of the fireproof expansion strip of the present invention.

[0016] Figure 1-4 In: 1. Passive fan; 101. Steel panel; 102. Fireproof adhesive layer; 103. Fireproof board; 104. Frame connecting piece; 105. Fan frame connecting piece; 106. Pan head self-tapping screw; 107. Fireproof expanded graphene rod; 2. Active fan; 3. Fireproof lock body; 301. Bending lock piece; 302. Fireproof lock core; 4. Composite nano-insulation rod; 5. Surface-mounted hinge; 501. Hinge connecting bolt; 6. M4 nut; 7. Fireproof foam; 8. Fireproof expansion strip. DETAILED DESCRIPTION

[0017] The following will be combined with the attached embodiment of the present invention Figure 1-Figure 4 , clearly and completely describe the technical solutions in the embodiments of the present invention.

[0018] See also Figure 1-4In an embodiment of the present invention, a passive aluminum alloy fireproof door for a near-zero energy consumption building comprises: a passive fan 1, an active fan 2 is arranged on one side of the passive fan 1, a fireproof lock body 3 is detachably connected between the passive fan 1 and the active fan 2, a composite nano heat-insulating rod 4 is fixedly installed inside the passive fan 1 and the active fan 2, the passive fan 1 and the active fan 2 are hinged with an exposed hinge 5 above the passive fan 1 and the active fan 2, the exposed hinge 5 is connected to the passive fan 1 and the active fan 2 through a hinge connecting bolt 501, M4 nuts 6 are arranged on the outer side of the passive fan 1 and the active fan 2, the outer side of the passive fan 1 and the active fan 2 are filled with fireproof foam 7, the M4 nuts 6 are arranged above the fireproof foam 7, and the composite nano heat-insulating rod 4 is fixedly installed inside the passive fan 1 and the active fan 2. A fireproof expansion strip 8 is provided, and a frame connecting piece 104 and a fan frame connecting piece 105 are fixedly installed on the outer sides of the passive fan 1 and the active fan 2 respectively. The upper ends of the frame connecting piece 104 and the fan frame connecting piece 105 are threadedly connected with pan head self-tapping screws 106, and the pan head self-tapping screws 106 are threadedly connected to the passive fan 1 and the active fan 2 respectively. Fireproof expansion graphene rods 107 are provided in the middle of the passive fan 1 and the active fan 2. A bent lock piece 301 is provided on one side of the fireproof lock body 3, and a fireproof lock core 302 is provided on the other side of the fireproof lock body 3. The main body of the door is composed of the passive fan 1 and the active fan 2, and an M4 nut 6 is provided on the outer side thereof. First, the studs are welded to the outdoor side panel (steel plate).Holes are processed at the corresponding positions of the profiles. During installation, the studs on the panel are passed through the holes and then fixed with nuts to prevent the internal fireproof glue or door core board inside the door core from collapsing and causing the outdoor side panel to fall off, thereby causing the fire protection function to fail. The detachable fireproof lock body 3 ensures that the fire can be effectively blocked in emergency situations such as fires, while meeting daily opening and closing needs. This connection method is convenient for installation and maintenance, and ensures the integrity and fireproof performance of the door. The composite nano-insulation rod 4 fixed inside is one of the key elements to achieve near-zero energy consumption. Nanomaterials usually have excellent thermal insulation properties, which can effectively prevent heat from being conducted through the door body, reducing Reduce indoor and outdoor heat exchange, reduce building energy consumption, maintain a comfortable indoor temperature environment, and meet the strict requirements of near-zero energy buildings on thermal insulation of the enclosure structure. The upper exposed hinge 5 and hinge connecting bolts 501 are responsible for the connection between the door fan and the door frame, ensuring that the normal opening and closing of the door is smooth and stable. The exposed design is convenient for installation, commissioning and later maintenance. The hinge is a frequently stressed component, and its connection strength is crucial to the long-term use of the door. The frame connecting piece 104 and the door frame connecting piece 105 are matched with the pan head self-tapping screws 106, which further strengthen the connection stability between the door fan and the door frame, making the overall structure of the door more solid, and not easy to deform during fire impact or daily frequent opening and closing. Loose, fireproof foam 7 is filled on the outside of passive fan 1 and active fan 2. When a fire occurs, the fireproof foam material can expand when heated, fill the gap in the door body, and prevent the penetration of flames, hot air and toxic smoke, so as to buy precious time for personnel evacuation and fire rescue. It is an important part of the fire barrier of fireproof doors. The fireproof expansion strip 8 is located below the composite nano-insulation rod 4. When the temperature rises, the fireproof expansion strip will expand rapidly and fit tightly to the gap between the door frame and the fan body. It cooperates with the fireproof foam 7 to form a strict fire prevention line to prevent the fire from spreading from the edge. The fireproof expansion graphene rod 107 is arranged in the middle of the fan body. Graphene has the characteristics of high strength and high temperature resistance. During the thermal expansion process, the fireproof expanded graphene rod can not only resist the invasion of flames, but also support the door structure to prevent deformation and collapse of the door due to high temperature, thereby ensuring the integrity and barrier performance of the fire door during a fire. The fireproof lock body 3 is a key device to ensure the fireproof performance and safe closure of the door. The bent lock piece 301 may be used to enhance the connection stability between the lock body and the fan body to ensure that the lock does not loosen or fall off in a high temperature environment; the fireproof lock core 302 has fireproof and high temperature resistant characteristics. Even in the event of a fire, it can work normally to prevent the door from being opened accidentally, maintain the door in a closed state, effectively block the spread of fire and smoke, and comprehensively improve the safety and energy saving of the building.

[0019] In the embodiment of the present invention, the outer surfaces of the passive fan 1 and the active fan 2 are fixedly installed with a steel panel 101, the inner side of the steel panel 101 is fixedly installed with a fireproof adhesive layer 102, and the inner side of the fireproof adhesive layer 102 is fixedly installed with a fireproof board 103. The fireproof board 103 is the innermost layer, and the inner side is fixedly connected to the passive fan 1 and the active fan 2, and is installed on the outer surfaces of the passive fan 1 and the active fan 2. The steel material itself has high strength and hardness, and can provide good impact resistance for the door body. In daily use, it can resist possible physical damage such as collision and scratching from the outside. At the same time, in a fire scene, it can also block the direct burning of flames and the influence of high temperature on the internal structure to a certain extent, and play the role of the first protective barrier. The fireproof adhesive layer 102 is located on the inner side of the steel panel 101, and it plays a dual role of bonding and auxiliary fire protection. On the one hand, it can tightly connect the steel panel 101 and the fireproof board 103 together to ensure the integrity of the entire protective structure and avoid separation of the layers during use; on the other hand, due to its fireproof performance, when encountering high temperature, it can delay the spread of fire and prevent the flame from spreading through the gaps between the layers, further enhancing the fireproof ability of the door. The fireproof board 103 is fixedly connected to the passive fan 1 and the active fan 2 as the innermost layer. It is the key structural layer that directly faces the threat of fire. The fireproof board is usually a board that has been specially processed and added with fire retardants and other ingredients. The excellent high temperature resistance and flame retardant performance can withstand the scorching of flames for a long time without being easily ignited, and can effectively block the heat from being transferred inwards, preventing the fire from entering the interior space of the building through the door body, and ensuring the safety of people and property inside the building. It is one of the core components of the fire protection function of the entire fire door. The three-layer structure cooperates and works together to improve the comprehensive performance of the fire door. When a fire occurs, the steel panel 101 first blocks the external flames and part of the heat, and then the fireproof adhesive layer 102 uses its own fireproof characteristics to further block and delay the high temperature and flame that may pass through the steel panel 101, and the fireproof board 103, with its excellent fireproof and flame retardant ability, serves as the last line of defense line, to maximize the protection of the door body and the building from fire, maintain the integrity of the door during the fire, and buy sufficient time for personnel evacuation, fire rescue, etc., while also meeting the strict requirements of near-zero energy buildings for fire safety. By arranging such a multi-layer structure composed of a steel panel, a fireproof adhesive layer and a fireproof board on the outer surface of the fan body, the fire prevention and protection capabilities of the passive fan 1 and the active fan 2 are comprehensively strengthened from the outside to the inside, so that the entire aluminum alloy fire door can not only perform well in fire prevention, but also better adapt to the complex and changeable use environment. On the basis of ensuring the fire safety of the building, it also helps to extend the service life of the fire door, providing reliable protection for the safe operation of near-zero energy buildings.

[0020] Working principle: The composite nano-insulation rod 4 inside the passive fan 1 and the active fan 2 uses the excellent thermal insulation properties of nanomaterials to form an efficient thermal insulation barrier, preventing heat from being conducted between indoors and outdoors through the door body, reducing heat exchange, and achieving the insulation requirements of the enclosure structure for near-zero energy consumption buildings, maintaining a stable indoor temperature, and the fireproof foam and expansion strip work together: the fireproof foam 7 expands rapidly under the high temperature of the fire, filling the door body gap outside the passive fan 1 and the active fan 2, preventing flames, hot air and toxic smoke from penetrating. The fireproof expansion strip 8 is below the composite nano-insulation rod 4, and it also expands rapidly when it encounters high temperature, tightly fitting the gap between the door frame and the fan body, and together with the fireproof foam 7, it forms a strict fire defense line to prevent the fire from spreading from the edge of the door. Fireproof expansion graphite The graphene rod 107 is in the middle of the fan body. It uses the high strength and high temperature resistance of graphene. When it expands due to heat, it can not only resist the invasion of flames, but also support the door structure to prevent the door from deforming and collapsing due to high temperature, thereby ensuring the integrity and barrier performance of the fire door during a fire. The bent lock piece 301 of the fireproof lock body 3 strengthens the connection between the lock body and the fan body, and keeps the lock stable and does not fall off at high temperatures. The fireproof lock core 302 has fireproof and high temperature resistance characteristics, and works normally in a fire, maintains the closed state of the door, and effectively blocks fire and smoke. The steel panel 101 can block direct burning of flames and part of the heat during a fire, and protect the internal structure. The fireproof adhesive layer 102 bonds the steel panel 101 and the fireproof board 103, and is fireproof itself, delays the spread of fire, and prevents flames from passing through the layers. The fireproof board 103 as the innermost layer, with its high temperature resistance and flame retardant performance, can withstand the flame for a long time, block the heat from transferring inwards, and ensure the safety inside the building. The exposed hinge 5 and the hinge connecting bolt 501 are responsible for connecting the fan body and the door frame to ensure the smooth and stable opening and closing of the door. The frame connecting piece 104, the fan frame connecting piece 105 and the pan head self-tapping screw 106 cooperate to strengthen the connection between the fan body and the door frame, so that the door is not easily deformed or loosened during fire impact or daily use. When a fire occurs, the heat is transferred to the door body and is first blocked by the steel panel 101. As the temperature rises, the heat is conducted to the fireproof adhesive layer 102, the fireproof board 103, the composite nano-insulation rod 4, the fireproof foam 7, the fireproof expansion strip 8 and the fireproof expansion graphene rod 107 and other parts, the fireproof foam 7, the fireproof expansion strip 8 and the fireproof expansion graphene rod 107 begin to expand when heated, the fireproof foam 7 fills the gap on the outside of the door body, the fireproof expansion strip 8 fills the edge gap between the door frame and the fan body, the fireproof expansion graphene rod 107 supports the middle structure of the door body, the bent lock piece 301 and the fireproof lock core 302 of the fireproof lock body 3 maintain stable performance at high temperatures, ensure that the door is in a closed state, and prevent fire and smoke from spreading from the gap of the door, the steel panel 101, the fireproof adhesive layer 102 and the fireproof board 103 work together to continuously block flames and heat, and the fireproof board 103, as a key line of defense, blocks the heat from transferring inward for as long as possible, maintains the integrity of the door body, and buys time for personnel evacuation and fire rescue.

Claims

1. A passive aluminum alloy fire door for a near-zero energy building, comprising: A passive fan (1), wherein an active fan (2) is arranged on one side of the passive fan (1), characterized in that: a fireproof lock body (3) is detachably connected between the passive fan (1) and the active fan (2), a composite nano heat-insulating rod (4) is fixedly installed inside the passive fan (1) and the active fan (2), an exposed hinge (5) is connected to the upper part of the passive fan (1) and the active fan (2), the exposed hinge (5) is connected to the passive fan (1) and the active fan (2) through a hinge connecting bolt (501), an M4 nut (6) is arranged on the outer side of the passive fan (1) and the active fan (2), the outer side of the passive fan (1) and the active fan (2) is filled with fireproof foam (7), the M4 nut (6) is arranged above the fireproof foam (7), and a fireproof expansion strip (8) is arranged below the composite nano heat-insulating rod (4).

2. The passive aluminum alloy fire door for a near-zero energy building according to claim 1 is characterized by: The passive fan (1) and the active fan (2) are both fixedly mounted with a steel panel (101) on their outer surfaces, the inner side of the steel panel (101) is fixedly mounted with a fireproof adhesive layer (102) and is mechanically connected to the profile frame via studs and nuts, the inner side of the fireproof adhesive layer (102) is fixedly mounted with a fireproof board (103), the fireproof board (103) is the innermost layer, and the inner side is fixedly connected to the passive fan (1) and the active fan (2).

3. The passive aluminum alloy fire door for a near-zero energy building according to claim 2 is characterized by: The passive fan (1) and the active fan (2) are respectively fixedly mounted with a frame connecting piece (104) and a fan frame connecting piece (105) on their outer sides; the frame connecting piece (104) and the fan frame connecting piece (105) are both threadedly connected with pan-head self-tapping screws (106) at their upper ends; and the pan-head self-tapping screws (106) are respectively threadedly connected to the passive fan (1) and the active fan (2).

4. The passive aluminum alloy fire door for a near-zero energy building according to claim 3 is characterized by: Fireproof expanded graphene rods (107) are provided in the middle of the passive fan (1) and the active fan (2).

5. The passive aluminum alloy fire door for a near-zero energy building according to claim 1 is characterized by: A bent lock sheet (301) is provided on one side of the fireproof lock body (3), and a fireproof lock core (302) is provided on the other side of the fireproof lock body (3).

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