Fireproof door frame with cold bridge prevention structure and fireproof door

Abstract

The utility model belongs to the technical field of fireproof doors, and particularly relates to a fireproof door with a cold bridge prevention structure. A supporting protective layer is arranged on the outer side of the supporting frame, and a first heat insulation material is filled between the supporting frame and the supporting protective layer; the door frame comprises a frame body, the frame body is filled with a second heat insulation material, and the door frame is fixedly connected with the supporting frame. The fireproof door further comprises a door body, the door body comprises a door plate and a fourth heat insulation material, and the door plate is filled with the fourth heat insulation material. The space between the supporting frame and the supporting protection layer is filled with the heat preservation and insulation material, heat loss of the supporting frame is reduced, and meanwhile the supporting protection layer is arranged and used for protecting the heat preservation and insulation material and preventing mechanical damage. The frame body of the door frame is also filled with a thermal insulation material, so that heat exchange between the door frame and the outside is further reduced.

Description

Technical Field

[0001] The utility model relates to a fireproof door frame with a cold bridge prevention structure and a fireproof door, belonging to the technical field of fireproof doors. Background Art

[0002] When building a natural gas power plant workshop in polar regions, the selection of doors is crucial. Due to the large temperature difference between indoor and outdoor in polar regions, the indoor temperature is 15 degrees Celsius, while the outdoor temperature can be as low as -50 degrees Celsius. Therefore, the heat insulation performance and sealing performance of the doors are crucial for maintaining indoor temperature, saving energy, and ensuring safety.

[0003] Moreover, once natural gas leaks, it may trigger serious fires. Under polar conditions, it is easy to form an environment with a relatively high concentration of combustible gas after natural gas leakage. Once encountering a fire source, it is extremely easy to trigger explosions and fires. And due to the extremely low temperature in polar regions, it may lead to increased difficulty in fire extinguishing, and at the same time, it will cause serious harm to personnel and equipment.

[0004] Currently, the doors of natural gas power plants in polar regions generally use steel fireproof doors. However, this steel door frame structure has many problems under polar conditions. Due to the large temperature difference between indoor and outdoor, heat is easily dissipated through the steel door frame structure, resulting in the cold bridge phenomenon and wasting energy. And it will generate condensate indoors. The condensate not only affects the safety of the house, but also affects the closing and airtightness of the door after freezing, and is prone to gas leakage and intrusion of harmful gases.

[0005] Therefore, how to provide a fireproof door frame with a cold bridge prevention structure and a fireproof door has become an urgent technical problem to be solved. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a fireproof door frame with a cold bridge prevention structure and a fireproof door to improve the technical problems existing in the above prior art.

[0007] The technical solution provided by the utility model is as follows: In the first aspect, the present application provides a fireproof door frame with a cold bridge prevention structure, including a support frame and a door frame; a support protection layer is provided on the outside of the support frame, and a first heat insulation material is filled between the support frame and the support protection layer; the door frame includes a frame body, a second heat insulation material is filled in the frame body, and the door frame is fixedly connected to the support frame.

[0008] The technical solution provided by the utility model has the following beneficial effects compared with the prior art: The support frame is generally a steel square tube. In this application, by filling a heat preservation and insulation material between the support frame and the support protection layer, the heat dissipation of the support frame is reduced, and at the same time, a support protection layer is provided to protect the heat preservation and insulation material from mechanical damage. The door frame is filled with a heat preservation and insulation material to further reduce the heat exchange between the door frame and the outside.

[0009] On the basis of the above technical solutions, the present utility model can be further improved as follows.

[0010] Furthermore, a third heat insulation material is provided at the connection between the door frame and the support frame, and the third heat insulation material is sealed between the door frame and the support frame by sealant.

[0011] The beneficial effects of adopting the above further solution are as follows: both the door frame and the support frame are made of metal. Using a third heat insulation material for sealed connection at their connection can not only isolate and reduce the cold bridge phenomenon, but also increase the sealing performance and improve the heat preservation effect. The sealant can be weather-resistant glue, which can prevent the rock wool from slipping out or water from entering, resulting in a reduction in heat preservation efficiency. The door frame and the support frame are fixedly connected by self-tapping screws.

[0012] Furthermore, the first heat insulation material, the second heat insulation material, and the third heat insulation material are respectively one of ceramic wool, aluminum silicate wool, rock wool, and glass wool.

[0013] The beneficial effects of adopting the above further solution are as follows: the above heat insulation materials are high-performance heat insulation materials. These materials exist in the form of fibers, have high flexibility and processability, are light in texture, and are convenient for construction and installation. Moreover, they have a low thermal conductivity, excellent heat insulation performance, can effectively prevent heat conduction, and can be used as heat insulation materials. They have extremely high heat resistance and are non-combustible, suitable for high-temperature environments.

[0014] Furthermore, the support protection layer is galvanized color-coated steel plate or aluminum-zinc alloy color-coated steel plate.

[0015] The beneficial effects of adopting the above further solution are as follows: affected by the environment, there is a large amount of salt in the air and the temperature is low. Galvanized color-coated steel plate or aluminum-zinc alloy color-coated steel plate is suitable for extreme environments, has corrosion resistance and weather resistance, and can provide mechanical protection for the first heat insulation material.

[0016] Furthermore, a sealing strip is provided on the door frame.

[0017] The beneficial effects of adopting the above further solution are as follows: seal the gap between the door and the door frame to reduce the generation of the cold bridge phenomenon.

[0018] Furthermore, the first heat insulation material is fixed on the support frame by rivets and lock washers, the support protection layer is fixed on the wall by fasteners, and a plurality of support members are provided between the support frame and the support protection layer, and the support members are arranged at intervals.

[0019] The beneficial effect of adopting the above further solution is that the first heat insulation material is fixed on the support frame through the structure of the stud and the locking piece, forming a permanent fixation. The stud is bent after the installation of the first heat insulation material and is further used as the support for the support protection layer; a support member is additionally provided between the support frame and the support protection layer to enhance the support effect, and both the support member and the support protection layer are fixed through fasteners.

[0020] In a second aspect, the present application provides a fire door, including a door body and the fire door frame with a cold bridge prevention structure described in the first aspect and any preferred solution of the first aspect above. The door body includes a door panel and a fourth heat insulation material, and the fourth heat insulation material is filled inside the door panel.

[0021] The fourth heat insulation material includes calcium silicate board and aluminum silicate wool. Two layers of calcium silicate boards are attached and arranged inside the door panel, and the aluminum silicate wool is arranged between the two layers of calcium silicate boards.

[0022] The beneficial effect of adopting the above further solution is that the door body is composed of multiple layers of galvanized steel plate, calcium silicate board and aluminum silicate wool, with better heat insulation effect and can achieve a fire prevention effect of 30 minutes.

[0023] Further, a flexible wind baffle is provided on the opening side of the door body.

[0024] The beneficial effect of adopting the above further solution is that the gap between the door body and the outside is reduced, further improving the heat preservation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic diagram of the overall structure of the fire door of the present utility model;

[0026] Figure 2 is of the present utility model Figure 1 a cross-sectional view taken along the A-A direction;

[0027] Figure 3 is a schematic diagram of the structure of the support frame of the present utility model;

[0028] Figure 4 is of the present utility model Figure 3 an enlarged view at A;

[0029] Figure 5 is a schematic diagram of the structure of the door body of the present utility model.

[0030] In the figure, 10, support frame; 11, first heat insulation material; 12, support protection layer;

[0031] 13, stud; 14, locking piece; 15, fastener; 16, support member;

[0032] 20. Door frame; 21. Frame body; 22. Second heat insulation material; 23. Third heat insulation material; 24. Sealant; 25. Sealing strip

[0033] 100. Door body; 30. Door panel; 40. Fourth heat insulation material; 41. Calcium silicate board; 42. Aluminum silicate wool; 50. Flexible wind baffle

[0034] 200. Wall Specific embodiments

[0035] The technical solutions of the fireproof door frame and the fireproof door provided in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application. The examples given are only used to explain the present invention and are not intended to limit the scope of the present invention.

[0036] As Figure 1 and Figure 2 shown, the fireproof door and the fireproof door frame involved in the present application include a door body 100, a support frame 10, and a door frame 20. The support frame 10 and the door frame 20 are located indoors, and the support frame 10 is arranged on the wall 200.

[0037] As Figure 3 shown, the support frame 10 is a steel square pipe, and the outer side is wrapped with a first heat insulation material 11. The first heat insulation material 11 can be one of ceramic wool, aluminum silicate wool, rock wool, and glass wool. In a possible implementation manner, if the heat insulation material used is relatively soft ceramic wool or glass wool, the first heat insulation material 11 is fixed on the support frame 10 through the structure of the rivets 13 and the lock washers 14. The rivets 13 are bent after the installation of the first heat insulation material 11. At the same time, support members 16 are provided, and each support member 16 is arranged at an interval of 300 mm and is fixedly connected to the fireproof door frame through fasteners. A support protection layer 12 is arranged on the outer layer of the first heat insulation material 11. The bent rivets 13, lock washers 14, and the support members 16 arranged at intervals provide support for the support protection layer 12. The support protection layer 12 is made of galvanized color-coated steel plate or aluminum-zinc alloy color-coated steel plate. Double reinforcement can better protect the heat insulation material and prevent mechanical damage. The support protection layer 12 is fixed on the wall 200 through fasteners.

[0038] As Figure 4 shown, the door frame 20 includes a frame body 21 and a sealing strip 25. The frame body 21 is filled with a second heat insulation material 22. The second heat insulation material 22 can be one of ceramic wool, aluminum silicate wool, rock wool, and glass wool. A third heat insulation material 23 is arranged at the connection between the support frame 10 and the door frame 20. The third heat insulation material 23 is sealed with a sealant 24, and the door frame 20 is fixed on the support frame 10 through self-tapping screws.

[0039] As Figure 5As shown in the figure, the door body 100 includes a door panel 30 and a fourth heat insulation material 40. The fourth heat insulation material 40 is filled inside the door panel. The fourth heat insulation material 40 includes a calcium silicate board 41 and aluminosilicate wool 42. Two layers of calcium silicate boards 41 are attached and arranged inside the door panel, and aluminosilicate wool 42 is filled between the two layers of calcium silicate boards 41. The door body is composed of multiple layers of a galvanized steel plate, a calcium silicate board 41, and aluminosilicate wool 42, with better heat insulation effect and can achieve a fire prevention effect of 30 minutes. A flexible wind baffle 50 is provided at the opening edge of the door body 100 in contact with the outside to seal the gap between the door body 100 and the door frame 20. A sealing strip 25 is provided on the door frame 20. When the door is closed, the sealing strip 25 is squeezed to make the door more airtight and reduce the generation of cold bridge phenomenon.

[0040] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A fireproof door frame with a cold bridge prevention structure, characterized in that, It includes a support frame (10) and a door frame (20); a support protection layer (12) is provided on the outer side of the support frame (10), and a first heat insulation material (11) is filled between the support frame (10) and the support protection layer (12); the door frame (20) includes a frame body (21), a second heat insulation material (22) is filled in the frame body (21), and the door frame (20) is fixedly connected to the support frame (10).

2. The fire door frame with a cold-bridge prevention structure according to claim 1, characterized in that, A third heat insulation material (23) is provided at the connection between the door frame (20) and the support frame (10), and the third heat insulation material (23) is sealed between the door frame (20) and the support frame (10) by a sealant (24).

3. The fire door frame with a cold bridge prevention structure according to claim 2, characterized in that, The first heat insulation material (11), the second heat insulation material (22), and the third heat insulation material (23) are respectively any one of ceramic wool, aluminum silicate wool, rock wool, and glass wool.

4. The fire door frame with a cold bridge prevention structure according to claim 3, characterized in that, The support protection layer (12) is a galvanized color-coated steel plate or an aluminum-zinc alloy color-coated steel plate.

5. The fire door frame with a cold bridge prevention structure according to claim 3, characterized in that, A sealing strip (25) is provided on the door frame (20).

6. The fire door frame with a cold bridge prevention structure according to claim 1, characterized in that, The first heat insulation material (11) is fixed on the support frame (10) by rivets (13) and lock washers (14), the support protection layer (12) is fixed on the wall (200) by fasteners (15), and a plurality of support members (16) are further provided between the support frame (10) and the support protection layer (12), and the plurality of support members are arranged at intervals.

7. A fire door, characterized in that, It includes a fireproof door frame with a cold bridge prevention structure according to any one of claims 1-6, and further includes a door body (100), the door body (100) includes a door panel (30) and a fourth heat insulation material (40), and the fourth heat insulation material (40) is filled inside the door panel (30).

8. The fire door according to claim 7, characterized in that, The fourth heat insulation material (40) includes calcium silicate board (41) and aluminum silicate wool (42), two layers of calcium silicate boards (41) are adhesively arranged inside the door panel (30), and the aluminum silicate wool (42) is arranged between the two layers of calcium silicate boards (41).

9. The fire door according to claim 8, wherein, A flexible wind baffle (50) is provided on the opening side of the door body (100).

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