Novel floating bead magnesium composite fireproof air pipe

Abstract

The utility model discloses a novel floating bead magnesium composite fireproof air pipe which comprises a plurality of pipe bodies, each pipe body comprises an outer-layer steel plate pipe, a fireproof heat insulation plate pipe is fixed on the inner wall of each outer-layer steel plate pipe, and an inner-layer steel plate pipe is fixed on the inner wall of each fireproof heat insulation plate pipe; supporting rods are fixed on symmetrical pipe walls in the inner-layer steel plate pipe; a mounting flange is integrally formed on the outer wall of the end part of the outer-layer steel plate pipe, and adjacent pipe bodies are connected and are positioned through bolts on the mounting flange; a sealing cover is integrally formed at the fire receiving end of the pipe body at the end, and a T-shaped branch pipe channel is arranged on the side wall of the pipe body at the end. The fireproof heat-insulation plate pipe is reasonable in structural arrangement, comprises the outer-layer steel plate pipe, the fireproof heat-insulation plate pipe and the inner-layer steel plate pipe, is favorable for improving the overall strength, the overall fireproof integrity and the overall heat-insulation performance, is also favorable for carrying out disassembly and assembly combination operation due to the arrangement of the mounting flanges, and improves the stability and the reliability of connection; and the applicability and the practicability are high.

Description

Technical Field

[0001] The utility model belongs to the technical field of air ducts, and in particular relates to a novel floating bead magnesium composite fireproof air duct. Background Art

[0002] There are corresponding air duct structures in the smoke exhaust, fire-fighting air supply and pressurization systems. The air ducts in the existing technology are mainly galvanized iron air ducts. Although they can meet the general usage requirements, their fire resistance is relatively limited and they are not conducive to disassembly and connection operations, so their applicability and practicality are limited. Summary of the Invention

[0003] The utility model aims to provide a novel floating bead magnesium composite fireproof air duct which has a reasonable structure and is conducive to improving fire resistance.

[0004] The technical solution for achieving the purpose of the utility model is a new type of floating bead magnesium composite fireproof air duct, comprising a plurality of tube bodies, wherein the tube bodies include an outer steel plate tube, a fireproof heat insulation board tube is fixed on the inner wall of the outer steel plate tube, and an inner steel plate tube is fixed on the inner wall of the fireproof heat insulation board tube;

[0005] Support rods are fixed on the symmetrical tube walls of the inner steel plate tube;

[0006] The outer wall of the end of the outer steel plate tube is integrally formed with a mounting flange, and adjacent tube bodies are connected and positioned by bolts on the mounting flange;

[0007] The fire-receiving end of the pipe body at the endmost end is integrally formed with a cover, and a T-shaped branch pipe channel is provided on the side wall.

[0008] It is further preferred that the fireproof and heat-insulating board tube is a floating bead magnesium board.

[0009] More preferably, the thickness of the outer steel plate tube is 0.2 mm, the thickness of the fireproof and heat-insulating plate tube is 19 mm, and the thickness of the inner steel plate tube is 0.5 mm.

[0010] More preferably, the outer steel plate tube is a color-coated steel plate.

[0011] Further preferably, the mounting flange is an angle iron structure.

[0012] The utility model has positive effects: the structure of the utility model is reasonably arranged, which includes an outer steel plate tube, a fireproof insulation board tube and an inner steel plate tube, which is not only conducive to improving the overall strength, but also conducive to improving the overall fire resistance integrity and thermal insulation performance, and is provided with a mounting flange, which is also conducive to disassembly and assembly operations, improving the stability and reliability of the connection, and has strong applicability and good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to make the content of the utility model easier to understand, the utility model is further described in detail below based on specific embodiments and in conjunction with the accompanying drawings, wherein:

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 It is a schematic diagram of the cross-sectional structure of the present utility model.

[0016] Reference numerals: pipe body 1, outer steel plate pipe 2, fireproof and heat-insulating board pipe 3, inner steel plate pipe 4, support rod 5, mounting flange 6, sealing cover 7, T-shaped branch pipe channel 8. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example

[0018] See Figures 1 to 2 As shown, a new type of floating bead magnesium composite fireproof air duct includes several tube bodies 1, and the tube body includes an outer steel plate tube 2, and the outer steel plate tube is a color steel plate. A fireproof insulation board tube 3 is fixed on the inner wall of the outer steel plate tube, and an inner steel plate tube 4 is fixed on the inner wall of the fireproof insulation board tube; a support rod 5 is fixed on the inner symmetrical tube wall of the inner steel plate tube; a mounting flange 6 is integrally formed on the outer wall of the end of the outer steel plate tube, and adjacent tube bodies are connected and positioned by bolts on the mounting flange; in this embodiment, the mounting flange is an angle iron structure. The length of its tube body is 1200mm, and its tube body can be square or round, and the support rod is mainly to ensure the strength of the overall tube body and prevent the tube body from collapsing or being damaged. At the same time, in this embodiment, the thickness of the outer steel plate tube is 0.2mm, the thickness of the fireproof insulation board tube is 19mm, and the thickness of the inner steel plate tube is 0.5mm. It is beneficial to improve the fire resistance integrity and thermal insulation performance, and is also beneficial to improve the tightness and strength of the pipe body, and is highly practical.

[0019] In actual application, the fire-receiving end of the pipe body at the end thereof is integrally formed with a cover 7, and a T-shaped branch pipe channel 8 is provided on the side wall. The T-shaped branch pipe channel can connect branch pipes, thereby improving the convenience of connection, and the fire-receiving end is also conducive to improving the fire resistance performance, and has strong practicality.

[0020] In actual application, the fireproof insulation board tube is a floating bead magnesium board. And it is non-combustible A1 grade, which is conducive to improving the flame retardant and fire resistant performance. The floating bead magnesium board is specifically composed of floating beads, graphite, silica, magnesium oxide, glass fiber and silicate silicon fiber and other inorganic materials. Its sealing is 330kg / m 3 , which is beneficial to improving the overall fire prevention and thermal insulation performance.

[0021] The utility model has positive effects: the structure of the utility model is reasonably arranged, which includes an outer steel plate tube, a fireproof insulation board tube and an inner steel plate tube, which is not only conducive to improving the overall strength, but also conducive to improving the overall fire resistance integrity and thermal insulation performance, and is provided with a mounting flange, which is also conducive to disassembly and assembly operations, improving the stability and reliability of the connection, and has strong applicability and good practicality.

[0022] The standard parts used in this embodiment can be purchased directly from the market, and the non-standard structural components described in the specification can also be directly processed according to existing technical common sense without any doubt. At the same time, the connection method of each component adopts the mature conventional means in the existing technology, and the machinery, parts and equipment all adopt conventional models in the existing technology, so no specific description is given here.

[0023] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. Those skilled in the art will readily appreciate that other variations or modifications based on the above description are possible. It is not necessary and impossible to enumerate all embodiments here. However, obvious variations or modifications arising from the essence of the present invention remain within the scope of protection of the present invention.

Claims

1. A novel floating bead magnesium composite fireproof air duct, comprising a plurality of pipe bodies, each of which comprises an outer layer of steel plate pipe, characterized in that: A fireproof and heat-insulating plate tube is fixed on the inner wall of the outer steel plate tube, and an inner steel plate tube is fixed on the inner wall of the fireproof and heat-insulating plate tube; Support rods are fixed on the symmetrical tube walls of the inner steel plate tube; The outer wall of the end of the outer steel plate tube is integrally formed with a mounting flange, and adjacent tube bodies are connected and positioned by bolts on the mounting flange; The fire-receiving end of the pipe body at the endmost end is integrally formed with a cover, and a T-shaped branch pipe channel is provided on the side wall.

2. The novel floating bead magnesium composite fireproof air duct according to claim 1 is characterized by: The fireproof heat-insulating board tube is a floating bead magnesium board.

3. The novel floating bead magnesium composite fireproof air duct according to claim 1 is characterized by: The thickness of the outer steel plate tube is 0.2 mm, the thickness of the fireproof and heat-insulating plate tube is 19 mm, and the thickness of the inner steel plate tube is 0.5 mm.

4. The novel floating bead magnesium composite fireproof air duct according to claim 3 is characterized by: The outer steel plate tube is a color-coated steel plate.

5. The novel floating bead magnesium composite fireproof air duct according to claim 1 is characterized by: The mounting flange is an angle iron structure.

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