Flame-retardant heat-insulation steel fireproof door

Abstract

The utility model discloses a flame-retardant heat-insulation steel fireproof door which comprises a fireproof door structure, and the fireproof door structure comprises a steel door leaf, an aluminum silicate plate, a perlite plate and a flame-retardant structure. The flame-retardant structure is arranged in the middle of the inner cavity of the steel door leaf, when flames burn to the position where the fire extinguishing plate is located, the thin film sleeve can be burnt through and broken, the liquid fire extinguishing agent filled in the thin film sleeve can leak outwards and flow to the inner surface and the outer surface of the fireproof door structure to form a layer of water film, and the effects of cooling and oxygen isolation are achieved; the fireproof performance of the fireproof door structure is greatly improved, the fireproof door structure is not prone to being burnt through and deforming before the fire extinguishing beads are used up, and more evacuation time can be obtained for victims.

Description

Technical Field

[0001] The utility model relates to the technical field of fireproof doors, in particular to a flame-retardant and heat-insulating steel fireproof door. Background Art

[0002] Steel fire doors refer to doors with specified fire resistance performance, which are made of steel materials for door frames, door leaf frames and door leaf panels. If the door leaf is filled with fireproof and heat-insulating materials that are non-toxic and harmless to the human body, and are equipped with fireproof hardware accessories.

[0003] Existing patent application number: CN202322575532.5 A wind pressure resistant steel fire door, including an installation door frame, a smoke proof ring is fixedly installed on the front side around the inner wall of the installation door frame, a fireproof steel door is movably installed inside the installation door frame through door leaves, the fireproof steel door is clamped with the smoke proof ring, a door lock is fixedly installed on the right side of the fireproof steel door, the compartment inside the fireproof steel door is provided with fireproof partitions, a fire-fighting device is provided at the front end of the upper side of the installation door frame, and a wind-resistant device is provided at the rear end of the installation door frame.

[0004] The above patent records a traditional steel fire door. When a fire occurs, if the fire is large and lasts for a long time, the steel fire door will be burned through and deformed by the flames, and its effect of preventing the spread of fire will be weakened. This case further improves the flame-retardant structure of the steel fire door to address the above problem, so as to gain more evacuation time for the affected people. Utility Model Content

[0005] The utility model aims to provide a flame retardant heat insulating steel fireproof door to solve the problems raised in the above background technology.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a flame-retardant and heat-insulating steel fire door, comprising a fire door structure, the fire door structure comprising a steel door leaf, an aluminum silicate plate, a perlite plate and a flame-retardant structure, an aluminum silicate plate is installed at the rear of the inner cavity of the steel door leaf, a perlite plate is installed at the front of the inner cavity of the steel door leaf, a flame-retardant structure is arranged in the middle of the inner cavity of the steel door leaf, the flame-retardant structure comprises a fire extinguishing plate, a through hole, fire extinguishing beads and a packaging film, the fire extinguishing plate is installed in the middle of the inner cavity of the steel door leaf, and the fire extinguishing plate is located between the aluminum silicate plate and the perlite plate, the surface of the fire extinguishing plate is penetrated by a through hole, the inner side of the through hole is filled with fire extinguishing beads, the fire extinguishing beads are composed of a film sleeve and a liquid fire extinguishing agent, the liquid fire extinguishing agent is filled in the film sleeve, the surface of the fire extinguishing plate is wrapped with a packaging film, and the packaging film completely covers the surface of the through hole.

[0007] Preferably, the through holes are distributed in a honeycomb shape on the surface of the fire extinguishing plate.

[0008] Preferably, the liquid fire extinguishing agent is a water-based fire extinguishing agent.

[0009] Preferably, grooves are symmetrically arranged on the long sides of both sides of the fire extinguishing board, and the packaging film is wound around the surface of the fire extinguishing board along the inner sides of the grooves.

[0010] Preferably, the packaging film is a flame retardant film.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The utility model arranges a flame retardant structure in the middle of the inner cavity of the steel door leaf. When the flame burns to the position of the fire extinguishing plate, the film sleeve will be burned through and ruptured, and the liquid fire extinguishing agent filled inside will leak out and flow to the inner and outer surfaces of the fire door structure to form a water film, which plays a role in cooling and isolating oxygen, greatly improving the fire resistance of the fire door structure. Before the fire extinguishing beads are consumed, the fire door structure is not easy to be burned through and deformed, which can provide more evacuation time for the affected people. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] Figure 2 This is a schematic diagram of the left side cross-sectional structure of the fire door structure of the utility model;

[0015] Figure 3 This is a schematic diagram of the flame retardant structure of the utility model;

[0016] Figure 4 The utility model is a schematic diagram of the fire extinguishing bead structure.

[0017] In the figure: fire door structure-1, steel door leaf-11, aluminum silicate plate-12, perlite plate-13, flame retardant structure-14, fire extinguishing plate-141, through hole-142, fire extinguishing beads-143, PVA film sleeve-143a, liquid fire extinguishing agent-143b, packaging film-144, groove-145. DETAILED DESCRIPTION

[0018] In order to further explain the technical solution of the present utility model, it is described in detail through specific embodiments below.

[0019] See also Figure 1The utility model provides a flame-retardant and heat-insulating steel fire door, including a fire door structure 1. The fire door structure 1 includes a steel door leaf 11, an aluminum silicate plate 12, a perlite plate 13 and a flame-retardant structure 14. The aluminum silicate plate 12 is installed at the rear of the inner cavity of the steel door leaf 11. The aluminum silicate plate 12 has good fire prevention, heat insulation and corrosion resistance to improve the stability of the fire door structure 1 at high temperatures. The perlite plate 13 is installed at the front of the inner cavity of the steel door leaf 11. The perlite plate 13 has the advantages of high strength and low thermal conductivity to improve the heat insulation and flame retardancy of the fire door structure 1. The flame-retardant structure 14 is arranged in the middle of the inner cavity of the steel door leaf 11.

[0020] See also Figure 2-4 The utility model provides a flame-retardant and heat-insulating steel fireproof door. The flame-retardant structure 14 includes a fire extinguishing plate 141, a through hole 142, fire extinguishing beads 143 and a packaging film 144. The fire extinguishing plate 141 is installed in the middle of the inner cavity of the steel door leaf 11, and the fire extinguishing plate 141 is located between the aluminum silicate plate 12 and the perlite plate 13. The surface of the fire extinguishing plate 141 is provided with a through hole 142, and the inner side of the through hole 142 is filled with fire extinguishing beads 143. The fire extinguishing beads 143 are composed of a PVA film sleeve 143a and a liquid fire extinguishing agent 143b. The liquid fire extinguishing agent 143b is filled in the PVA film sleeve 143a. The surface of the fire extinguishing plate 141 is wrapped with a packaging film 144, and the packaging film 144 completely covers the surface of the through hole 142, so that the fire extinguishing beads 143 are enclosed in the through hole 142, and are not easily affected by external factors and accidentally ruptured.

[0021] To further explain, the through holes 142 are distributed in a honeycomb shape on the surface of the fire extinguishing plate 141, and each fire extinguishing bead 143 is stored in a separate through hole 142 without interfering with each other, so that the fire extinguishing beads 143 will not be released all at once, and the consumption rate of the fire extinguishing beads 143 can be controlled.

[0022] To further explain, the liquid fire extinguishing agent 143b adopts a water-based fire extinguishing agent, which is a liquid fire extinguishing agent mixed with water and other chemical components. When the PVA film sleeve 143a is burned through and ruptured, the liquid fire extinguishing agent 143b filled inside it will leak out and flow to the inner and outer surfaces of the fire door structure 1 to form a layer of water film, which plays a role in cooling and isolating oxygen, greatly improving the fire resistance of the fire door structure 1. Before the fire extinguishing beads 143 are consumed, the fire door structure 1 is not easy to be burned through and deformed, and more evacuation time can be obtained for the affected personnel.

[0023] Further explanation: grooves 145 are symmetrically arranged on the long sides of both sides of the fire extinguishing plate 141, and the packaging film 144 is wound around the surface of the fire extinguishing plate 141 along the inner side of the groove 145. The groove 145 limits the packaging film 144. After the packaging film 144 is wound, it is not easy to move and fall off from the surface of the fire extinguishing plate 141.

[0024] To further explain, the packaging film 144 is made of PET flame retardant film, which has good weather resistance and flame retardancy, and can provide certain flame retardant protection for the fire extinguishing beads 143 in the through holes 142, so that the fire extinguishing beads 143 will not be released in full too early, and the consumption rate of the fire extinguishing beads 143 can be controlled.

[0025] Here’s how it works:

[0026] First, the fire door structure 1 adopts a steel door leaf 11, which has good high temperature resistance to ensure the basic fire resistance performance of the fire door structure 1. An aluminum silicate plate 12 is arranged at the rear of the inner cavity of the steel door leaf 11. The aluminum silicate plate 12 has good fire resistance, heat insulation and corrosion resistance to improve the stability of the fire door structure 1 at high temperatures. A perlite plate 13 is arranged at the front of the inner cavity of the steel door leaf 11. The perlite plate 13 has the advantages of high strength and low thermal conductivity to improve the heat insulation and flame retardant properties of the fire door structure 1.

[0027] Secondly, a fire extinguishing plate 141 is arranged in the middle of the inner cavity of the steel door leaf 11, and fire extinguishing beads 143 are filled in the through holes 142 distributed in a honeycomb shape on the surface of the fire extinguishing plate 141, and a packaging film 144 is wrapped around the surface of the fire extinguishing plate 141, and the packaging film 144 completely covers the surface of the through holes 142, thereby enclosing the fire extinguishing beads 143 in the through holes 142 and fixing the position of the fire extinguishing beads 143.

[0028] Third, when a fire occurs, if the fire is large and lasts for a long time, the fire door structure 1 will also be burned through by the flames. When the flames reach the location of the fire extinguishing plate 141, the PVA film sleeve 143a will be burned through and ruptured, and the liquid fire extinguishing agent 143b filled inside it will leak out and flow to the inner and outer surfaces of the fire door structure 1 to form a layer of water film, which plays a role in cooling and isolating oxygen, greatly improving the fire resistance of the fire door structure 1. Before the fire extinguishing beads 143 are consumed, the fire door structure 1 is not easy to be burned through and deformed, and more evacuation time can be obtained for the affected personnel.

[0029] The above are only preferred examples of the present invention and are not intended to limit the present invention. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, 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 flame-retardant heat-insulating steel fire door, comprising a fire door structure (1), the fire door structure (1) comprising a steel door leaf (11), an aluminum silicate plate (12) and a perlite plate (13), the aluminum silicate plate (12) being installed at the rear of the inner cavity of the steel door leaf (11), and the perlite plate (13) being installed at the front of the inner cavity of the steel door leaf (11); Features: The invention also comprises a flame retardant structure (14), wherein the flame retardant structure (14) is arranged in the middle of the inner cavity of the steel door leaf (11), wherein the flame retardant structure (14) comprises a fire extinguishing plate (141), a through hole (142), a fire extinguishing bead (143) and a packaging film (144), wherein the fire extinguishing plate (141) is installed in the middle of the inner cavity of the steel door leaf (11), and the fire extinguishing plate (141) is located between the aluminum silicate plate (12) and the pearlite plate (13), wherein the fire extinguishing plate (141) A through hole (142) is provided on the surface, and a fire extinguishing bead (143) is filled inside the through hole (142). The fire extinguishing bead (143) is composed of a PVA film sleeve (143a) and a liquid fire extinguishing agent (143b), and the liquid fire extinguishing agent (143b) is filled inside the PVA film sleeve (143a). A packaging film (144) is wound around and covered on the surface of the fire extinguishing plate (141), and the packaging film (144) completely covers the surface of the through hole (142).

2. A flame retardant and heat insulating steel fire door according to claim 1, characterized in that: The through holes (142) are distributed in a honeycomb shape on the surface of the fire extinguishing plate (141).

3. The flame retardant and heat insulating steel fire door according to claim 1, characterized in that: The liquid fire extinguishing agent (143b) is a water-based fire extinguishing agent.

4. The flame retardant and heat insulating steel fire door according to claim 1, characterized in that: Grooves (145) are symmetrically arranged on the long sides of both sides of the fire extinguishing plate (141), and the packaging film (144) is wound around the surface of the fire extinguishing plate (141) along the inner sides of the grooves (145).

5. The flame retardant and heat insulating steel fire door according to claim 1, characterized in that: The packaging film (144) is made of PET flame-retardant film.

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