High-temperature-resistant heat insulation structure for civil air defense door

Abstract

The utility model relates to the field of civil air defense engineering and building protection equipment, in particular to a high-temperature-resistant heat insulation structure for a civil air defense door, which comprises a door frame and a door body, the door body is hinged on the door frame, the door frame comprises an outer frame, an inner frame and a first heat insulation layer, the door body comprises an outer layer plate, an inner layer plate and a second heat insulation layer, and the outer frame is arranged on the outer side of the inner frame. The first heat insulation layer is located between the outer frame and the inner frame, the outer layer plate is arranged on the outer side of the inner layer plate, the first heat insulation layer and the second heat insulation layer are made of efficient heat insulation materials such as ceramic fiber plates, aerogel heat insulation materials or expanded perlite plates, and the materials have low heat conductivity coefficient and good high-temperature resistance. External heat can be effectively prevented from being transmitted to the inner frame and the inner layer plate, the hollow layers are arranged on the inner frame and the inner layer plate, the hollow layers are of a grid structure, an air layer is added, heat resistance is further improved, and heat transmission is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of civil air defense engineering and building protection equipment, and concretely relates to a high-temperature-resistant heat insulation structure for a civil air defense door. BACKGROUND

[0002] In modern urban construction and national defense engineering, civil air defense doors are one of the important safety facilities, and their main role is to protect the internal personnel and equipment of buildings from external threats when war or disaster occurs. However, in practical applications, especially in high-temperature environments such as fires, traditional civil air defense doors have the following shortcomings:

[0003] Poor heat insulation performance:

[0004] Material limitations: Traditional metal door bodies have strong heat conduction at high temperatures, and poor heat insulation effect.

[0005] Poor sealing: The gap between the door body and the door frame can easily lead to heat conduction, affecting the overall heat insulation effect.

[0006] Insufficient fire resistance:

[0007] Easily deformed: In high-temperature environments, metal door bodies are prone to deformation, affecting the closing and opening functions of the door.

[0008] Fireproof coating failure: Traditional fireproof coatings may fail under long-term high temperatures, losing their protective effect.

[0009] Short service life:

[0010] Aging quickly: In harsh environments such as high temperatures and humidity, door body materials can easily age, reducing service life. INVENTION CONTENTS

[0011] (I) Technical problems solved

[0012] To address the shortcomings of existing technology, the utility model provides a high-temperature-resistant heat insulation structure for a civil air defense door.

[0013] (II) Technical solutions

[0014] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: A high-temperature-resistant heat insulation structure for a civil air defense door, comprising a door frame and a door body, the door body is hinged to the door frame, the door frame comprises an outer frame, an inner frame, and a heat insulation layer one, the door body comprises an outer layer plate, an inner layer plate, and a heat insulation layer two, the outer frame is arranged outside the inner frame, the heat insulation layer one is located between the outer frame and the inner frame, the outer layer plate is arranged outside the inner layer plate, the heat insulation layer two is located between the outer layer plate and the inner layer plate, the inner frame and the inner layer plate are both provided with a hollow layer, and the hollow layer adopts a grid structure.

[0015] Preferably, the heat insulation layer one and the heat insulation layer two adopt any one of ceramic fiber board, aerogel heat insulation material and expanded perlite board.

[0016] Further preferably, the surface of the outer frame and the outer layer plate is provided with a plurality of strip-shaped grooves.

[0017] Again preferably, the surface of the outer frame and the outer layer plate is coated with a fireproof coating.

[0018] Preferably, the outer side of the outer frame is surrounded by a sealing frame, the sealing frame is coated with a fireproof coating, the inside of the sealing frame is provided with a heat insulation layer three, and the inner side of the sealing frame is attached to the door body.

[0019] Further preferably, the door body and the door frame are connected through a hinge shaft, a lock is arranged between the door body and the door frame, and the hinge shaft and the lock adopt high-temperature-resistant stainless steel material.

[0020] (Three) beneficial effects

[0021] Compared with the prior art, the utility model provides a high-temperature-resistant heat insulation structure for a civil air defense door, which has the following beneficial effects:

[0022] Improve the heat insulation performance:

[0023] Multi-layer composite heat insulation material: the heat insulation layer one and the heat insulation layer two adopt high-efficiency heat insulation materials such as ceramic fiber board, aerogel heat insulation material or expanded perlite board, which have low thermal conductivity and good high-temperature resistance, and can effectively block the transmission of external heat to the inner frame and the inner layer plate.

[0024] Hollow layer design: the inner frame and the inner layer plate are both provided with a hollow layer, and the hollow layer adopts a grid structure, which increases the air layer, further improves the thermal resistance and reduces heat transfer.

[0025] Enhance the fire resistance:

[0026] Fireproof coating: the surface of the outer frame and the outer layer plate is coated with a fireproof coating, which adopts high-temperature-resistant inorganic fireproof paint, can form a stable protective film in a high-temperature environment, delay heat conduction and improve the overall fire resistance.

[0027] High-temperature-resistant material: the hinge shaft and the lock adopt high-temperature-resistant stainless steel material, which ensures that they can still work normally in a high-temperature environment and maintain the opening and closing functions of the door body.

[0028] Prolong the service life:

[0029] High-strength material: the outer layer plate adopts high-temperature-resistant stainless steel plate, and the inner layer plate adopts high-strength alloy steel plate, which provides mechanical strength and corrosion resistance, reduces the aging speed of the material and prolongs the service life.

[0030] High-temperature-resistant material: The heat insulation layer and fireproof coating use high-temperature-resistant materials, which can maintain good performance even in a long-term high-temperature environment, further extending the service life of the equipment.

[0031] Improved environmental performance:

[0032] Non-hazardous materials: The use of non-toxic and harmless heat insulation materials and fireproof coatings avoids the release of harmful substances, ensuring environmental and human health.

[0033] Enhanced safety:

[0034] Strip-shaped groove design: The surface of the outer frame and the outer layer plate is provided with a plurality of strip-shaped grooves, which increases the surface area of the door frame and the door body, helps to dissipate heat to the air through natural convection or forced convection, and at the same time dissipates more heat through radiation. In addition, the strip-shaped grooves reduce the direct contact area between the door frame and the door body and the external environment, reducing the effective area of heat conduction.

[0035] Sealing frame: The outer side of the outer frame is surrounded by a sealing frame, which is coated with a fireproof coating and has a heat insulation layer inside. The inner side of the sealing frame is in close contact with the door body, ensuring that the door body and the door frame are tightly connected and preventing heat conduction through gaps.

[0036] Structural stability: The hollow layer and the sealing frame design enhance the overall safety, reducing deformation and damage caused by thermal stress.

[0037] Convenient operation and reliability:

[0038] Hinge shaft and lock: The door body and the door frame are connected by a hinge shaft made of high-temperature-resistant stainless steel, and a lock made of high-temperature-resistant stainless steel is also provided to ensure reliable locking of the door body in a high-temperature environment, ensuring convenient operation and reliability. BRIEF DESCRIPTION OF DRAWINGS

[0039] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0040] Figure 2 It is a schematic diagram of the door frame structure of the present utility model;

[0041] Figure 3 It is a schematic diagram of the door frame cross-sectional structure of the present utility model;

[0042] Figure 4 It is a schematic diagram of the door body cross-sectional structure of the present utility model;

[0043] Figure 5 It is a schematic diagram of the sealing frame cross-sectional structure of the present utility model;

[0044] In the figure: 1, door frame; 2, door body; 3, inner frame; 4, outer frame; 5, heat insulation layer one; 6, inner layer plate; 7, outer layer plate; 8, heat insulation layer two; 9, hollow layer; 10, sealing frame; 11, heat insulation layer three; 12, lock; 13, strip-shaped groove. DETAILED DESCRIPTION

[0045] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0046] Please refer to Figures 1-5 The high-temperature-resistant heat insulation structure for the civil defense door comprises a door frame 1 and a door body 2, the door body 2 is hinged to the door frame 1, the door frame 1 comprises an outer frame 4, an inner frame 3 and a heat insulation layer one 5, the door body 2 comprises an outer layer plate 7, an inner layer plate 6 and a heat insulation layer two 8, the outer frame 4 is arranged outside the inner frame 3, the heat insulation layer one 5 is located between the outer frame 4 and the inner frame 3, the outer layer plate 7 is arranged outside the inner layer plate 6, the heat insulation layer two 8 is located between the outer layer plate 7 and the inner layer plate 6, the inner frame 3 and the inner layer plate 6 are both provided with a hollow layer 9, and the hollow layer 9 adopts a grid structure.

[0047] The high-temperature-resistant heat insulation structure for the civil defense door significantly improves the heat insulation and fire resistance performance of the civil defense door in a high-temperature environment through optimized design and the adoption of a novel heat insulation material. The structure comprises a door frame 1 and a door body 2, and the door body 2 is hinged to the door frame 1. The specific working principle is as follows:

[0048] Door frame 1

[0049] Outer frame 4: arranged outside the inner frame 3, plays a protective and supporting role.

[0050] Inner frame 3: cooperates with the outer frame 4 to form the overall structure of the door frame 1.

[0051] Heat insulation layer one 5: located between the outer frame 4 and the inner frame 3, adopts high-efficiency heat insulation materials such as ceramic fiber plates, aerogel heat insulation materials or expanded perlite plates, effectively blocks the transmission of external heat to the inner frame 3.

[0052] Door body 2

[0053] Outer layer plate 7: arranged outside the inner layer plate 6, adopts high-temperature-resistant stainless steel plates, has excellent high-temperature resistance and oxidation resistance.

[0054] Inner layer plate 6: adopts high-strength alloy steel plates, provides mechanical strength and corrosion resistance.

[0055] Thermal insulation layer two 8: Located between the outer layer plate 7 and the inner layer plate 6, also using ceramic fiber board, aerogel thermal insulation material or expanded perlite board and other high-efficiency thermal insulation materials to further improve the thermal insulation effect.

[0056] Hollow layer 9: The inner frame 3 and the inner layer plate 6 are both provided with a hollow layer 9, and the hollow layer 9 adopts a grid structure, which increases the air layer, improves the thermal resistance, and reduces heat transfer.

[0057] Strip-shaped groove 13

[0058] The surface of the outer frame 4 and the outer layer plate 7 is provided with a plurality of strip-shaped grooves 13: These strip-shaped grooves 13 increase the surface area of the door frame 1 and the door body 2, which helps to dissipate heat into the air through natural convection or forced convection. At the same time, the strip-shaped grooves 13 reduce the direct contact area of the door frame 1 and the door body 2 with the external environment, reducing the effective area of heat conduction.

[0059] Fireproof coating

[0060] The surface of the outer frame 4 and the outer layer plate 7 is coated with a fireproof coating: The fireproof coating uses high-temperature-resistant inorganic fireproof paint, which can form a stable protective film in a high-temperature environment, delay heat conduction, and improve the overall fire resistance.

[0061] Sealing frame 10

[0062] Sealing frame 10: The outer side of the outer frame 4 is surrounded by a sealing frame 10, which is coated with a fireproof coating and has a thermal insulation layer three 11 (also using high-efficiency thermal insulation materials) inside. The inner side of the sealing frame 10 is attached to the door body 2, ensuring close contact between the door body 2 and the door frame 1, preventing heat conduction through gaps.

[0063] Hinge shaft and lock 12

[0064] Hinge shaft: The door body 2 and the door frame 1 are connected by a hinge shaft, which is made of high-temperature-resistant stainless steel to ensure normal operation in a high-temperature environment.

[0065] Lock 12: The door body 2 and the door frame 1 are equipped with a lock 12, which is also made of high-temperature-resistant stainless steel to ensure reliable locking of the door body 2 in a high-temperature environment.

[0066] Working principle of each preferred technical solution

[0067] Selection of thermal insulation materials

[0068] Ceramic fiber board: It has low thermal conductivity and good high-temperature resistance, and is suitable for thermal insulation in high-temperature environments.

[0069] Aerogel thermal insulation material: It has extremely low thermal conductivity and lightweight characteristics, further improving the thermal insulation effect.

[0070] Expanded perlite board: It has excellent heat insulation and sound absorption performance, and also has certain mechanical strength.

[0071] Design of strip-shaped groove 13

[0072] Increase thermal resistance: The strip-shaped groove 13 forms many small air layers on the surface of the door frame 1 and the door body 2, and air is a poor conductor of heat. These air layers can increase the path length of heat conduction, thereby increasing the thermal resistance and reducing heat transfer.

[0073] Enhance heat dissipation: The strip-shaped groove 13 increases the surface area of the door frame 1 and the door body 2, which helps to dissipate heat into the air through natural convection or forced convection, and also dissipates more heat through radiation.

[0074] Application of fireproof coating

[0075] Inorganic fireproof coating: The high-temperature resistant inorganic fireproof coating has good fire resistance and adhesion, and can form a stable protective film in a high-temperature environment.

[0076] Multi-layer coating: A multi-layer coating process is adopted to ensure uniform coating thickness and improve overall fire resistance.

[0077] Structure optimization

[0078] Hollow layer 9: The inner frame 3 and the inner layer plate 6 are both provided with a hollow layer 9, and the hollow layer 9 adopts a grid structure, which increases the air layer, improves the thermal resistance, and reduces the heat transfer.

[0079] Sealing frame 10: The outer side of the outer frame 4 is surrounded by a sealing frame 10, which is coated with a fireproof coating and has a heat insulation layer 11 inside. The inner side of the sealing frame 10 is attached to the door body 2, ensuring close contact between the door body 2 and the door frame 1, preventing heat conduction through gaps.

[0080] High-temperature resistant material: The hinge shaft and the lock 12 are made of high-temperature resistant stainless steel, which ensures normal operation in a high-temperature environment and maintains the opening and closing function of the door body 2.

[0081] Summary

[0082] Through the above technical solutions, the utility model provides a high-efficiency and reliable high-temperature resistant and heat insulation structure for civil air defense doors. The structure not only improves the heat insulation and fire resistance of the civil air defense door in a high-temperature environment, but also prolongs the service life and enhances the environmental protection performance. Specifically:

[0083] Improve the heat insulation performance: The multi-layer composite heat insulation material and the strip-shaped groove 13 design significantly improve the heat insulation performance of the door body 2.

[0084] Enhanced fire resistance: High-temperature-resistant materials and fireproof coatings improve the overall fire resistance of the door body 2.

[0085] Extended service life: High-strength materials and high-temperature-resistant materials reduce the aging rate of materials, extending the service life.

[0086] Improved environmental performance: Harmless materials and energy-saving effects meet the requirements of green buildings.

[0087] Enhanced safety: Hollow layer 9 and sealed frame 10 design enhances overall safety.

[0088] Through these technical solutions, the structure can significantly improve the safety and reliability of the civil air defense door in a high-temperature environment.

[0089] Although embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A high-temperature-resistant heat insulation structure for a civil air defense door, characterized in that, The utility model provides a door frame (1) and door body (2), door body (2) is hinged on door frame (1), door frame (1) includes outer frame (4), inner frame (3) and heat insulation layer one (5), door body (2) includes outer layer board (7), inner layer board (6) and heat insulation layer two (8), outer frame (4) is arranged at the outside of inner frame (3), heat insulation layer one (5) is located between outer frame (4) and inner frame (3), outer layer board (7) is arranged at the outside of inner layer board (6), heat insulation layer two (8) is located between outer layer board (7) and inner layer board (6), and the hollow layer (9) is equipped on inner frame (3) and inner layer board (6), and the hollow layer (9) adopts grid structure.

2. The high-temperature-resistant heat insulation structure for a civil defense door according to claim 1, characterized in that, The heat insulation layer one (5) and the heat insulation layer two (8) adopt any one of ceramic fiber board, aerogel insulation material and expanded perlite board.

3. The high-temperature-resistant thermal insulation structure for a civil defense door according to claim 2, characterized in that, The surface of the outer frame (4) and the outer layer board (7) is provided with a plurality of strip grooves (13).

4. The high-temperature-resistant thermal insulation structure for a civil defense door according to claim 3, characterized in that, The surface of the outer frame (4) and the outer layer board (7) is coated with a fireproof coating.

5. The high-temperature-resistant thermal insulation structure for a civil defense door according to claim 4, characterized in that, The outer side of the outer frame (4) is surrounded by a sealing frame (10), the sealing frame (10) is coated with a fireproof coating, the inside of the sealing frame (10) is provided with a heat insulation layer three (11), and the inner side of the sealing frame (10) is attached to the door body (2).

6. The high-temperature-resistant thermal insulation structure for a civil defense door according to claim 5, characterized in that, The door body (2) and the door frame (1) are connected by a hinge shaft, a lock (12) is arranged between the door body (2) and the door frame (1), and the hinge shaft and the lock (12) are made of high-temperature-resistant stainless steel.

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