Special thermal-insulation airtight fireproof door and window for low-temperature grain storage
By applying fireproof coatings and high-temperature hard fireproof materials on the steel plates of fireproof doors and windows for low-temperature storage, and using high-pressure filling of polyurethane layers and seals to achieve sealing, the problem that existing fireproof doors and windows cannot meet the needs of grain storage insulation and sealing is solved, and efficient fireproof and insulation effects are achieved.
Patent Information
- Application Number
- CN202510114984.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-24
- Publication Date
- 2025-05-27
AI Technical Summary
There is a lack of fire-proof doors and windows dedicated to grain storage in existing grain storage, and the existing insulation and closed fire-proof doors and windows for low-temperature grain storage cannot narrow the fire-fighting distance in the construction drawings, resulting in high land use costs.
The steel plate is coated with fireproof coating and bonded with a high-temperature hard fireproof material and aerogel insulation cotton layer. The two steel plates are filled with densely filled with high-pressure filling polyurethane layer, and the seal is sealed at the connection between the steel plate and doors and windows frames to increase airtightness to achieve thermal insulation effect.
Effectively prevent fire inside fire doors and windows, increase the airtightness and insulation performance of doors and windows, extend the fire resistance time of doors and windows, and meet the fire protection and insulation requirements in low-temperature grain storage environments.
Smart Images
Figure CN120042441A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of heat-insulating and airtight fire doors and windows, and particularly to heat-insulating and airtight fire doors and windows dedicated for low-temperature grain storage. Background Art
[0002] Fire doors usually refer to doors installed in some enclosed places such as stairways, elevator shafts, cable wells, smoke exhaust ducts, etc. The function of fire doors is to meet the fire resistance stability and heat insulation within a certain period of time, prevent the spread and diffusion of fire, and ensure the evacuation of personnel. They are essential equipment in fire protection work and are usually used in civil buildings.
[0003] Food is the most basic material need for human survival, providing nutrients such as energy, protein, carbohydrates, fats, vitamins, and minerals required by the human body, and is the key to maintaining life activities and physical health.
[0004] There is no fire door and window dedicated for grain storage in the existing grain storage. Moreover, in the construction of existing grain warehouses, the use of heat-insulating and airtight fire doors and windows dedicated for low-temperature grain storage can reduce the building fire separation distance in the construction drawings, achieving the cost savings of land use. Summary of the Invention
[0005] The present invention provides heat-insulating and airtight fire doors and windows dedicated for low-temperature grain storage to solve the technical problem that the existing fire doors and windows cannot play a role in heat insulation and airtightness. In the present invention, a fireproof coating is applied to the inside of the steel plate and a layer of high-temperature resistant rigid fireproof material aerogel thermal insulation cotton layer is bonded. The gap between the two steel plates can be filled tightly by a high-pressure filling polyurethane layer, which can prevent the inside of the entire fire door and window from catching fire. The connection between the steel plate and the door and window frame is sealed by a sealant, increasing the airtightness at the connection between the steel plate and the door and window frame, and the inside of the fire door and window can be heat-insulated.
[0006] To achieve the above object, the present invention is realized through the following technical solutions:
[0007] Heat-insulating and airtight fire doors and windows dedicated for low-temperature grain storage, comprising:
[0008] A door and window frame;
[0009] A steel section, which is used to fix the door and window frame. The steel section serves as a skeleton to support the door and window frame and is located inside the door and window frame;
[0010] A steel plate, which is movably connected to the door and window frame through a hinge, or directly connected to the door and window frame. A fireproof coating for fire prevention is applied to the inside of the steel plate, and a layer of high-temperature resistant rigid fireproof material aerogel thermal insulation cotton layer is bonded. The gap between the two steel plates can be filled tightly by a high-pressure filling polyurethane layer;
[0011] A seal is provided at the connection between the steel plate and the door and window frame, and the seal is used to seal the connection between the steel plate and the door and window frame;
[0012] The interior of the steel plate is coated with a fireproof coating and bonded with a layer of high-temperature resistant rigid fireproof material, aerogel insulation cotton layer. The gap between the two steel plates can be filled densely by high-pressure filling of polyurethane layer, which can prevent the interior of the entire fireproof door and window from catching fire. The connection between the steel plate and the door and window frame is sealed by a seal, which increases the airtightness at the connection between the steel plate and the door and window frame, and the interior of the fireproof door and window can be insulated.
[0013] Optionally, a fireproof material is adhered to the steel plate, and the fireproof material is located inside the steel plate. After applying the fireproof coating inside the steel plate, a layer of high-temperature resistant rigid fireproof material, aerogel insulation cotton layer is bonded. The fire resistance temperature of the steel plate exceeds 1000 degrees.
[0014] Optionally, there is a hollow layer between two fireproof materials.
[0015] Optionally, a high-pressure filling polyurethane layer is provided inside the hollow layer, and the material of the high-pressure filling polyurethane layer is polyurethane or other heat insulation materials.
[0016] Optionally, the high-temperature resistant fireproof material layer is closely adhered to the high-pressure filling polyurethane layer, which increases the airtightness inside the fireproof door and window, enabling the interior of the fireproof door and window to be insulated.
[0017] Optionally, two adjacent door and window frames are connected in a way of bevel confrontation.
[0018] Optionally, an arc guiding angle is provided on the section steel inside the corner of the door and window frame, and the arc guiding angle is used for guiding the rubber strip.
[0019] Optionally, the rubber strip is an inflated airtight rubber strip. After the inflated airtight rubber strip is filled with air and expands, it seals the gap between the door and window frame and the section steel.
[0020] Optionally, a reinforcing rib is connected to the door and window frame, and a fixing plate for installing a door lock is provided on the door and window frame.
[0021] Optionally, the material of the door and window frame is section steel, and the fire resistance temperature of the section steel exceeds 1000 degrees. Through the door and window frame and the steel plate, the fire resistance time of the entire fireproof door and window exceeds 1.5 hours.
[0022] Advantages of the present invention:
[0023] 1. The interior of the steel plate of the present invention is coated with a fireproof coating for fire prevention and bonded with a layer of high-temperature resistant rigid fireproof material, aerogel insulation cotton layer. A seal is provided at the connection between the steel plate and the door and window frame. The seal is used to seal the connection between the steel plate and the door and window frame. By coating the interior of the steel plate with a fireproof coating and a high-temperature resistant rigid fireproof material, aerogel insulation cotton layer, it is possible to prevent fire from occurring inside the entire fireproof door and window. By sealing the connection between the steel plate and the door and window frame with a seal, the airtightness at the connection between the steel plate and the door and window frame is increased, and the interior of the fireproof door and window can be insulated.
[0024] 2. A fireproof material is adhered to the steel plate of the present invention. The fireproof material is located inside the steel plate. The fireproof material itself has an insulation function, and the fireproof material insulates the entire interior of the fireproof door and window inside the fireproof door and window.
[0025] 3. A high-pressure filled polyurethane layer is provided in the hollow layer of the present invention. The high-pressure filled polyurethane layer is used for filling, so that the entire fireproof door and window is filled into a whole. The fireproof door and window forms a whole structure without any assembly gaps, increasing the airtightness inside the fireproof door and window. The interior of the fireproof door and window can be insulated, and the whole can be airtight.
[0026] 4. The present invention uses a set of sealing rubber strips and a set of inflatable rubber strips sleeved inside the door and window frame, and the rubber strips cover the outer walls of the entire door and window sash and the outer walls of the profiled steel. There are rubber strips at the upper, lower, left, and right positions inside the door and window frame. The inflatable sealing function of the rubber strips seals the gap between the door and window frame and the profiled steel, increasing the airtightness between the door and window frame and the profiled steel. And the rubber strips seal the gap between the door and window frame and the entire door and window sash, increasing the airtightness between the window frame and the foamed board;
[0027] At the same time, a set of fireproof rubber strips is used, and the rubber strips cover the outer walls of the entire door and window sash and the outer walls of the profiled steel. There are fireproof rubber strips at the upper, lower, left, and right positions inside the door and window frame. The function of the fireproof rubber strips is that when encountering heat or a fire, the rubber strips quickly expand to seal the gap between the door and window frame and the profiled steel, increasing the smoke and fire isolation effect between the door and window frame and the profiled steel, so that the entire fireproof door and window meets the fire prevention requirements. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0029] Figure 1 It is the front view direction structure diagram of the present invention;
[0030] Figure 2 For the present invention Figure 1 The partial enlarged structure diagram at C of
[0031] Figure 3 For the present invention Figure 1 Structural diagram in the A-A sectional view direction;
[0032] Figure 4 For the present invention Figure 1 Structural diagram in the B-B sectional view direction;
[0033] Figure 5 Structural diagram of the door and window frame of the present invention provided with reinforcing ribs and fixing plates.
[0034] Icons: 1 - Door and window frame, 2 - Section steel, 3 - Steel plate, 4 - Aerogel thermal insulation cotton layer of high-temperature resistant rigid fireproof material, 5 - High-pressure filling polyurethane layer, 6 - Seal, 7 - Hinge, 8 - Reinforcing rib, 9 - Fixing plate, 11 - Arc guiding angle. Detailed implementation manners
[0035] The embodiments of the present application will be described in detail below with reference to the accompanying drawings.
[0036] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.
[0037] The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise stated, the meaning of "plurality" is two or more.
[0038] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be welding, bolt connection, or riveting; it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.
[0039] Embodiment 1
[0040] As Figure 1As shown, this embodiment provides heat-insulating, airtight and fireproof doors and windows for low-temperature grain storage, including: door and window frames 1, steel profiles 2, steel plates 3 and seals 6; the steel profiles 2 are used to fix the door and window frames 1, and the steel profiles 2 serve as the skeletons to support the door and window frames 1. The steel profiles 2 are located inside the door and window frames 1. Figure 3 The upper steel plate 3 is movably connected to the door and window frame 1 through a hinge 7. Figure 3 The lower steel plate 3 is directly connected to the door and window frame 1. A fireproof coating for fire prevention (such as: HIPS fireproof coating or RLHY-12 high-temperature heat-insulating and heat-preserving coating) is applied inside the steel plate 3 and a layer of high-temperature resistant rigid fireproof material aerogel thermal insulation layer 4 is bonded.
[0041] The seal 6 is arranged at the connection between the steel plate 3 and the door and window frame 1. The seal 6 is used to seal the connection between the steel plate 3 and the door and window frame 1, and increase the airtightness of the connection between the steel plate 3 and the door and window frame 1.
[0042] By applying a fireproof coating inside the steel plate 3 and bonding a layer of high-temperature resistant rigid fireproof material aerogel thermal insulation layer 4, it can prevent the interior of the entire fireproof door and window from catching fire. By sealing the connection between the steel plate 3 and the door and window frame 1 with the seal 6, the airtightness of the fireproof door and window is increased, and the interior of the fireproof door and window can be heat-insulated.
[0043] Embodiment 2
[0044] Based on Embodiment 1, as Figure 3 or as Figure 4 shown, a layer of high-temperature resistant rigid fireproof material aerogel thermal insulation layer 4 (the high-temperature resistant rigid fireproof material aerogel thermal insulation layer 4 can be perlite board) with heat-insulating function itself is attached to the steel plate 3, and the high-temperature resistant rigid fireproof material aerogel thermal insulation layer 4 is located inside the steel plate 3.
[0045] There is a hollow layer between two high-temperature resistant rigid fireproof material aerogel thermal insulation layers 4. A high-pressure filled polyurethane layer 5 is arranged in the hollow layer. The material of the high-pressure filled polyurethane layer 5 is polyurethane or other heat-insulating materials. Foaming of the high-pressure filled polyurethane or other heat-insulating materials (i.e., the filling material that can foam twice, such as: ethylene-vinyl acetate copolymer) is carried out in the hollow layer, so that the entire fireproof door and window is foamed into a whole by the high-pressure polyurethane or other heat-insulating materials (or the filling material that can foam twice), and the heat-insulating performance inside the fireproof door and window is good. Through the application of the overall filling technology, a structure of the fireproof door and window that forms a whole and has no any assembly gaps can be formed, and the high-temperature resistant rigid fireproof material aerogel thermal insulation layer 4 and the high-pressure filled polyurethane layer 5 are tightly attached, and the airtightness inside the fireproof door and window is increased.
[0046] Embodiment 3
[0047] Based on Embodiment 1, as Figure 2As shown, on the steel profile 2 inside the corner of the door and window frame 1, there is an arc guiding angle 11, and the arc guiding angle 11 is used for guiding the rubber strip (not shown in the figure). That is to say, combining Figure 1 and Figure 2 As shown, let a whole rubber strip be sleeved inside the door and window frame 1, and the rubber strip covers the outer wall of the high-pressure filling polyurethane layer 5 and the outer wall of the steel profile 2. There are rubber strips at the upper, lower, left, and right positions inside the door and window frame 1. The rubber strip is an inflatable airtight rubber strip (it can be any one of silicone sealing rubber strip, polyurethane sealing rubber strip, and ethylene propylene diene monomer sealing rubber strip). After the inflatable airtight rubber strip is filled with air and expands, the inflatable airtight rubber strip seals the gap between the door and window frame 1 and the steel profile 2, increasing the airtightness between the door and window frame 1 and the steel profile 2, and the rubber strip seals the gap between the door and window frame 1 and the foaming board 5, increasing the airtightness between the door and window frame 1 and the high-pressure filling polyurethane layer 5.
[0048] As Figure 1 shown, two adjacent door and window frames 1 are connected in a way of bevel butt joint, that is, two adjacent door and window frames 1 are cut at a 45° angle and spliced and welded together. In this way, the reaction force of the rubber strip on the door and window frame 1 is reduced, and the whole fireproof door and window can be closed tighter and tighter.
[0049] Example 4
[0050] Based on Example 1, as Figure 5 shown, a reinforcing rib 8 is welded and connected to the door and window frame 1. It can be that the reinforcing rib 8 is welded on the inner side wall of the door and window frame 1. On the door and window frame 1, there is a fixing plate 9 for installing a door lock. The fixing plate 9 is used to fix the door lock. The material of the door and window frame 1 is a profile (such as: steel profile of GH4099), and the fire resistance temperature of the profile exceeds 1000 degrees.
[0051] Example 5
[0052] Based on all the above examples, a fireproof coating is applied inside the steel plate 3 of the present invention and a layer of high-temperature resistant hard fireproof material aerogel thermal insulation cotton layer 4 is bonded. The fire resistance temperature of the steel plate 3 (such as: 310S steel plate) coated with the fireproof coating and bonded with the high-temperature resistant hard fireproof material aerogel thermal insulation cotton layer 4 exceeds 1000 degrees, preventing the inside of the whole fireproof door and window from catching fire. After a fireproof coating is applied inside the steel plate 3 and a layer of high-temperature resistant hard fireproof material aerogel thermal insulation cotton layer 4 is bonded, the fire resistance time of the door and window frame 1 and the steel plate 3 exceeds 1.5 hours. The connection between the steel plate 3 and the door and window frame 1 is sealed by a seal 6, and the seal 6 at the connection between the steel plate 3 and the door and window frame 1 has airtightness, and the inside of the fireproof door and window can be thermally insulated.
[0053] A high-pressure filling polyurethane layer 5 is provided inside the hollow layer or between the two steel plates 3. The filling of the high-pressure filling polyurethane layer 5 makes the entire fireproof door and window filled as a whole, forming a structure of the fireproof door and window as a whole without any assembly gaps, increasing the airtightness inside the fireproof door and window, and enabling heat preservation inside the fireproof door and window.
[0054] Let a whole rubber strip be sleeved inside the door and window frame 1, and the rubber strip covers the outer wall of the high-pressure filling polyurethane layer 5 and the outer wall of the profiled steel 2. Figure 1 There are rubber strips at the upper, lower, left and right positions inside the door and window frame 1 of. The air-inflating and sealing function of the rubber strip seals the gap between the door and window frame 1 and the profiled steel 2, and the rubber strip seals the gap between the door and window frame 1 and the high-pressure filling polyurethane layer 5, further increasing the airtightness of the fireproof door and window, and enabling heat preservation inside the fireproof door and window.
[0055] As described above, it is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope recorded by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claimed rights.
Claims
1. Special insulation, airtight and fireproof doors and windows for low-temperature grain storage, characterized by: include: Door and window frames (1); A steel section (2), the steel section (2) is used to fix the door and window frame (1), the steel section (2) serves as a framework for supporting the door and window frame (1), and the steel section (2) is located inside the door and window frame (1); Steel plates (3), the steel plates (3) are movably connected to the door and window frames (1) via hinges (7), or the steel plates (3) are directly connected to the door and window frames (1), the interior of the steel plates (3) is coated with a fireproof paint for fire prevention, and is bonded with a high-temperature resistant hard fireproof material and an aerogel insulation cotton layer (4), and the plate seams and joint seams are densely filled by a high-pressure filling polyurethane layer (5) between the two steel plates (3); A sealing member (6), wherein the sealing member (6) is arranged at the connection between the steel plate (3) and the door and window frame (1), and the sealing member (6) is used to seal the connection between the steel plate (3) and the door and window frame (1); By coating the inside of the steel plate (3) with fireproof coating and bonding it with a high-temperature resistant hard fireproof material and an aerogel heat-insulating cotton layer (4), the plate seams and joint seams are densely filled by high-pressure filling of a polyurethane layer (5) between the two steel plates (3), thereby preventing the entire fireproof door and window from catching fire. By sealing the connection between the steel plate (3) and the door and window frame (1) with a seal (6), the airtightness of the connection between the steel plate (3) and the door and window frame (1) is increased, so that the inside of the fireproof door and window can be heat-insulated, airtight and fireproof.
2. The heat-insulating, airtight, fire-proof doors and windows specially used for low-temperature grain storage according to claim 1, characterized in that: The interior of the steel plate (3) is bonded with the high-temperature resistant hard fireproof material plus aerogel insulation cotton layer (4). After the interior of the steel plate (3) is coated with the fire-retardant coating and bonded with a layer of high-temperature resistant hard fireproof material plus aerogel insulation cotton layer (4), the fire-resistant temperature of the steel plate (3) exceeds 1000 degrees.
3. The heat-insulating, airtight, fire-proof doors and windows specially used for low-temperature grain storage according to claim 2, characterized in that: A hollow layer is provided between the two high temperature resistant hard fireproof material aerogel heat insulation cotton layers (4).
4. The heat-insulating, airtight, fire-proof doors and windows specially used for low-temperature grain storage according to claim 3, characterized in that: The high-pressure filling polyurethane layer (5) is arranged in the hollow layer, and the high-pressure filling polyurethane layer (5) fills the board seams and the joint seams tightly. The material of the high-pressure filling polyurethane layer (5) is polyurethane or other thermal insulation materials.
5. The heat-insulating, airtight, fire-proof doors and windows specially used for low-temperature grain storage according to claim 2, characterized in that: The high temperature resistant hard fireproof material plus aerogel heat-insulating cotton layer (4) is closely fitted to the high pressure filling polyurethane layer (5), thereby increasing the air tightness inside the fireproof door and window, and enabling the inside of the fireproof door and window to be heat-insulated.
6. The heat-insulating, airtight, fire-proof doors and windows specially used for low-temperature grain storage according to claim 1, characterized in that: The two adjacent door and window frames (1) are connected in a manner of beveled contact.
7. The heat-insulating, airtight, fire-proof doors and windows specially used for low-temperature grain storage according to claim 1, characterized in that: The steel section (2) in the corner of the door and window frame (1) is provided with an arc guide angle (11), and the arc guide angle (11) is used for guiding the rubber strip.
8. The heat-insulating, airtight, fire-proof doors and windows specially used for low-temperature grain storage according to claim 7, characterized in that: The rubber strip is an inflatable sealing rubber strip. After the inflatable sealing rubber strip is filled with air and expanded, the inflatable sealing rubber strip seals the gap between the door and window frame (1) and the steel section (2).
9. The heat-insulating, airtight, fire-proof doors and windows specially used for low-temperature grain storage according to claim 1, characterized in that: A reinforcing rib (8) is connected to the door and window frame (1), and a fixing plate (9) for installing a door lock is provided on the door and window frame (1).
10. The heat-insulating, airtight, fire-proof doors and windows specially used for low-temperature grain storage according to claim 1, characterized in that: The material of the door and window frame (1) is a profile, and the fire resistance temperature of the profile exceeds 1000 degrees. Through the door and window frame (1) and the steel plate (3), the fire resistance time of the entire fireproof door and window exceeds 1.5 hours.