Fire-resistant and pressure-resistant smoke exhaust composite air pipe

Abstract

The utility model provides a fire-resistant and compression-resistant smoke exhaust composite air pipe which comprises a pipe body and connectors, the two ends of the pipe body are fixedly connected with the connectors, the outer surface of the pipe body is fixedly connected with a plurality of outer rings, the outer rings are connected through reinforcing ribs, and the reinforcing ribs are fixedly connected to the outer surface of the pipe body. The utility model has the advantages that the galvanized coating forms a protective layer on the surface of the pipeline, and when the pipeline is exposed in a high-temperature environment, the galvanized coating can be used as a thermal barrier to slow down the transmission speed of heat to a pipeline base material. According to the smoke exhaust pipeline, the compression resistance design, the outer ring on the surface, the reinforcing ribs and the frame design are adopted, the overall structural strength of the pipeline is improved, the rigidity and strength of the pipeline are improved, an external protection frame is formed, and therefore the fire resistance time of the pipeline is prolonged. The pressure is dispersed when being pressed, and the stress concentration caused by the external pressure is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of smoke exhaust air ducts, in particular to a fire-resistant and pressure-resistant smoke exhaust composite air duct. Background Art

[0002] Smoke exhaust ducts are an important part of building ventilation systems, and are mainly used to discharge smoke and harmful gases generated inside buildings. Smoke exhaust ducts are pipes through which high-temperature air flows. Their main function is to quickly discharge smoke, harmful gases, etc. in buildings in the event of a fire or other emergency, to ensure the safety of personnel evacuation and reduce damage to buildings caused by fire. Smoke exhaust ducts are widely used in various types of buildings, such as high-rise buildings, commercial complexes, industrial plants, etc.

[0003] In the prior art, in order to make the smoke exhaust duct lighter, the duct wall is made thinner, but the duct wall lacks rigidity and strength. When subjected to unexpected external forces, the duct is easily deformed and broken. Utility Model Content

[0004] The purpose of the present invention is to solve at least one of the above technical deficiencies.

[0005] To this end, one purpose of the utility model is to provide a fire-resistant and pressure-resistant smoke exhaust composite air duct to solve the problems mentioned in the background technology and overcome the shortcomings of the prior art.

[0006] In order to achieve the above-mentioned purpose, an embodiment of one aspect of the utility model provides a fire-resistant and pressure-resistant smoke exhaust composite air duct, comprising a pipe body and an interface, wherein the two ends of the pipe body are fixedly connected with interfaces, and the outer surface of the pipe body is fixedly connected with a plurality of outer rings, and the outer rings are connected with reinforcing ribs, and the reinforcing ribs are fixedly connected to the outer surface of the pipe body;

[0007] A fixing plate is fixedly connected to the outer surface of the tube body, and a frame is fixedly connected to one side of the fixing plate;

[0008] The inside and outside of the tube body are movably connected with a rotating rod, and the part of the rotating rod located inside the tube body is fixedly connected with a valve plate;

[0009] The end of the rotating rod is fixedly connected with a guide plate, and the end of the guide plate is fixedly connected with a handle;

[0010] A guide groove is provided near the edge of the guide plate, a screw pin is movably connected in the guide groove, a fastening head is threadedly connected to the screw pin, and the fastening head is fastened to the surface of the guide plate;

[0011] The outer surfaces of the pipe body, the interface and the frame are all coated with a fire-resistant coating.

[0012] Preferably, any of the above schemes is that the outer ring is welded to the outer surface of the tube body, and the material of the outer ring is stainless steel.

[0013] Adopting the above technical solution: the main body of the smoke exhaust duct is composed of a pipe body and an interface.

[0014] This smoke exhaust duct is designed to be fire-resistant and fireproof. The outer surfaces of its pipe body, interface, and frame are coated with a fire-resistant coating. The fire-resistant coating is specifically a galvanized layer, and its melting point is much higher than the ignition point of ordinary combustible materials. Therefore, in the early stage of a fire, the galvanized layer can effectively delay the combustion of the pipe. The galvanized coating forms a protective layer on the surface of the pipe. When the pipe is exposed to a high temperature environment, this zinc layer can act as a thermal barrier to slow down the transfer of heat to the pipe substrate. This means that the material inside the pipe can maintain a lower temperature for a longer period of time, thereby increasing its fire resistance time.

[0015] Preferably, from any of the above schemes, two ends of the reinforcing rib are riveted or welded to the outer ring, the reinforcing rib is welded to the outer surface of the tube body, and the reinforcing rib has the same direction as the axis of the tube body.

[0016] Adopting the above technical solution: the smoke exhaust duct is designed to be pressure-resistant, and the outer ring, reinforcement ribs and frame design on its surface improve the overall structural strength of the duct, increase the rigidity and strength of the duct, and form an external protection frame to disperse the pressure when under pressure and reduce the stress concentration caused by external pressure.

[0017] Preferably, any of the above schemes is that the fixing plate is welded to the outer surface of the tube body, and the fixing plate is welded to the frame.

[0018] The above technical solution is adopted: the smoke exhaust duct is designed with a valve plate that can be rotated and stopped at will. When the valve plate is rotated to different angles, the smoke flow rate of the duct can be adjusted. The valve plate is linked with the rotating rod and the guide plate. After the guide plate is rotated, the fastening head is tightened on the surface of the guide plate due to the movable connection with a screw pin in the guide groove to lock the angle of the guide plate and the valve plate. The smoke exhaust duct is easy to operate when adjusting the smoke flow rate.

[0019] Preferably, in any of the above solutions, the cross-sectional shape of the frame is U-shaped, and the frame is located on one side of the tube body.

[0020] Preferably, any of the above schemes is that the rotating rod passes through the guide plate, the valve plate is circular in shape, and the guide plate is located outside the frame.

[0021] Preferably, in any of the above schemes, the arc angle corresponding to the guide groove is 100 degrees, and the refractory coating is specifically a galvanized layer.

[0022] Compared with the prior art, the advantages and beneficial effects of the utility model are:

[0023] 1. The fire-resistant and pressure-resistant smoke exhaust composite air duct is designed to be fire-resistant and fireproof through the coordination of the tank body, outer ring, reinforcing ribs, fixing plate, frame, rotating rod, valve plate, guide plate, handle, guide groove, screw pin, fastening head and fire-resistant coating. The outer surface of the pipe body, interface and frame are coated with a fire-resistant coating. The fire-resistant coating is specifically a galvanized layer, and its melting point is much higher than the ignition point of ordinary combustible materials. Therefore, in the early stage of a fire, the galvanized layer can effectively delay the combustion of the pipe. The galvanized coating forms a protective layer on the surface of the pipe. When the pipe is exposed to a high temperature environment, this zinc layer can act as a thermal barrier to slow down the transfer of heat to the pipe substrate. This means that the material inside the pipe can maintain a lower temperature for a longer period of time, thereby increasing its fire resistance time;

[0024] The smoke exhaust duct is designed to resist pressure. The outer ring, reinforcing ribs and frame design on its surface improve the overall structural strength of the duct, increase the rigidity and strength of the duct, and form an external protective frame to disperse the pressure when under pressure and reduce the stress concentration caused by external pressure.

[0025] 2. The fire-resistant and pressure-resistant smoke exhaust composite air duct is designed with a valve plate that can be rotated and stopped at will. When the valve plate is rotated to different angles, the smoke flow rate of the pipe can be adjusted. The valve plate is linked with the rotating rod and the guide plate. After the guide plate is rotated, the fastening head is tightened on the surface of the guide plate due to the movably connected screw pin in the guide groove to lock the angle of the guide plate and the valve plate. The smoke exhaust pipe is easy to operate when adjusting the smoke flow rate.

[0026] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0028] Figure 1 It is a structural schematic diagram of the utility model from the first perspective;

[0029] Figure 2 It is a structural schematic diagram of the utility model from a second viewing angle;

[0030] Figure 3 It is a structural schematic diagram of the utility model from a third viewing angle;

[0031] Figure 4 It is a schematic diagram of the structure of the refractory coating of the utility model.

[0032] In the figure: 1-tube body, 2-interface, 3-outer ring, 4-reinforcement rib, 5-fixed plate, 6-frame, 7-rotating rod, 8-valve plate, 9-guide plate, 10-handle, 11-guide groove, 12-screw pin, 13-fastening head, 14-refractory coating. DETAILED DESCRIPTION

[0033] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0034] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, 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 a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] like Figure 1-4 As shown, the fire-resistant and pressure-resistant smoke exhaust composite air duct comprises a pipe body 1 and an interface 2. The two ends of the pipe body 1 are fixedly connected with the interface 2. The outer surface of the pipe body 1 is fixedly connected with a plurality of outer rings 3. The outer rings 3 are connected with reinforcing ribs 4. The reinforcing ribs 4 are fixedly connected to the outer surface of the pipe body 1.

[0036] A fixing plate 5 is fixedly connected to the outer surface of the tube body 1, and a frame 6 is fixedly connected to one side of the fixing plate 5;

[0037] The inside and outside of the tube body 1 are movably connected with a rotating rod 7, and a valve plate 8 is fixedly connected to the part of the rotating rod 7 located inside the tube body 1;

[0038] The end of the rotating rod 7 is fixedly connected to a guide plate 9, and the end of the guide plate 9 is fixedly connected to a handle 10;

[0039] A guide groove 11 is provided near the edge of the guide plate 9, a screw pin 12 is movably connected in the guide groove 11, a fastening head 13 is threadedly connected to the screw pin 12, and the fastening head 13 is tightened on the surface of the guide plate 9;

[0040] The outer surfaces of the pipe body 1 , the interface 2 , and the frame 6 are all coated with a fire-resistant coating 14 .

[0041] Embodiment 1: The outer ring 3 is welded to the outer surface of the tube body 1, and the material of the outer ring 3 is stainless steel. The main body of the smoke exhaust duct is composed of a tube body 1 and an interface 2. The smoke exhaust duct is designed to be fire-resistant and fireproof, and the outer surfaces of the tube body 1, the interface 2, and the frame 6 are coated with a fire-resistant coating 14. The fire-resistant coating 14 is specifically a galvanized layer, and its melting point is much higher than the ignition point of ordinary combustible materials. Therefore, in the early stage of a fire, the galvanized layer can effectively delay the combustion of the pipe. The galvanized coating forms a protective layer on the surface of the pipe. When the pipe is exposed to a high temperature environment, this zinc layer can act as a thermal barrier to slow down the transfer of heat to the pipe substrate. This means that the material inside the pipe can maintain a lower temperature for a longer period of time, thereby increasing its fire resistance time.

[0042] Embodiment 2: Both ends of the reinforcing rib 4 are riveted or welded to the outer ring 3, and the reinforcing rib 4 is welded to the outer surface of the tube body 1, and the direction of the reinforcing rib 4 is the same as that of the axis of the tube body 1. The outer ring 3, the reinforcing rib 4 and the frame 6 on the surface of the tube body 1 are designed to improve the overall structural strength of the pipeline, increase the rigidity and strength of the pipeline, and form an external protective frame to disperse the pressure when under pressure and reduce the stress concentration caused by external pressure. The fixing plate 5 is welded to the outer surface of the tube body 1, and the fixing plate 5 is welded to the frame 6. The cross-sectional shape of the frame 6 is U-shaped, and the frame 6 is located on one side of the tube body 1. The rotating rod 7 passes through the guide plate 9, and the valve plate 8 is circular in shape, and the guide plate 9 is located on the outside of the frame 6. The arc angle corresponding to the guide groove 11 is 100 degrees, and the refractory coating 14 is specifically a galvanized layer.

[0043] The working principle of the utility model is as follows:

[0044] The smoke exhaust pipe is provided with a valve to adjust the smoke flow rate. The smoke flows from one end of the pipe to the other end. When the valve plate 8 is rotated to different angles, the smoke flow rate of the pipe can be adjusted. The valve plate 8 is linked with the rotating rod 7 and the guide plate 9. After the guide plate 9 is rotated, the fastening head 13 is tightened on the surface of the guide plate 9 due to the movably connected screw pin 12 in the guide groove 11 to lock the angle of the guide plate 9 and the valve plate 8.

[0045] The smoke exhaust pipe is designed to be fire-resistant and fireproof. The outer surfaces of the pipe body 1, the interface 2, and the frame 6 are coated with a fire-resistant coating 14. The fire-resistant coating 14 is specifically a galvanized layer, and its melting point is much higher than the ignition point of ordinary combustible materials. The outer ring 3, the reinforcing ribs 4, and the frame 6 on the surface of the pipe are designed to improve the overall structural strength of the pipe, increase the rigidity and strength of the pipe, and form an external protective frame to disperse the pressure when under pressure and reduce the stress concentration caused by external pressure.

[0046] Compared with the prior art, the present invention has the following beneficial effects:

[0047] 1. The fire-resistant and pressure-resistant smoke exhaust composite air duct is designed to be fire-resistant and fireproof through the coordination of the tank body 1, outer ring 3, reinforcing ribs 4, fixing plate 5, frame 6, rotating rod 7, valve plate 8, guide plate 9, handle 10, guide groove 11, screw pin 12, fastening head 13, and fire-resistant coating 14. The outer surface of the pipe body 1, interface 2, and frame 6 are coated with a fire-resistant coating 14. The fire-resistant coating 14 is specifically a galvanized layer, and its melting point is much higher than the ignition point of ordinary combustible materials. Therefore, in the early stage of a fire, the galvanized layer can effectively delay the combustion of the pipe. The galvanized coating forms a protective layer on the surface of the pipe. When the pipe is exposed to a high temperature environment, this zinc layer can act as a thermal barrier to slow down the transfer of heat to the pipe substrate. This means that the material inside the pipe can maintain a lower temperature for a longer period of time, thereby increasing its fire resistance time;

[0048] The smoke exhaust duct is designed to resist compression. The outer ring 3, reinforcing ribs 4 and frame 6 on the surface are designed to improve the overall structural strength of the duct, increase the rigidity and strength of the duct, and form an external protective frame to disperse the pressure when under pressure and reduce the stress concentration caused by external pressure.

[0049] 2. The fire-resistant and pressure-resistant smoke exhaust composite air duct is designed with a valve plate 8 that can be rotated and stopped at will. When the valve plate 8 is rotated to different angles, the smoke flow rate of the duct can be adjusted. The valve plate 8 is linked with the rotating rod 7 and the guide plate 9. After the guide plate 9 is rotated, since there is a screw pin 12 movably connected in the guide groove 11, the fastening head 13 is tightened on the surface of the guide plate 9 to lock the angles of the guide plate 9 and the valve plate 8. The smoke exhaust duct is easy to operate when adjusting the smoke flow rate.

Claims

1. A fire-resistant and pressure-resistant smoke exhaust composite air duct, characterized in that: It comprises a tube body (1) and an interface (2), wherein the two ends of the tube body (1) are fixedly connected to the interface (2), the outer surface of the tube body (1) is fixedly connected to a plurality of outer rings (3), the outer rings (3) are connected by reinforcing ribs (4), and the reinforcing ribs (4) are fixedly connected to the outer surface of the tube body (1); A fixing plate (5) is fixedly connected to the outer surface of the tube body (1), and a frame (6) is fixedly connected to one side of the fixing plate (5); The inside and outside of the tube body (1) are movably connected with a rotating rod (7), and a valve plate (8) is fixedly connected to the part of the rotating rod (7) located inside the tube body (1); The end of the rotating rod (7) is fixedly connected to a guide plate (9), and the end of the guide plate (9) is fixedly connected to a handle (10); A guide groove (11) is provided near the edge of the guide plate (9), a screw pin (12) is movably connected in the guide groove (11), a fastening head (13) is threadedly connected to the screw pin (12), and the fastening head (13) is tightened on the surface of the guide plate (9); The outer surfaces of the tube body (1), the interface (2) and the frame (6) are all coated with a fire-resistant coating (14).

2. The fire-resistant and pressure-resistant smoke exhaust composite air duct according to claim 1, characterized in that: The outer ring (3) is welded to the outer surface of the tube body (1), and the material of the outer ring (3) is stainless steel.

3. The fire-resistant and pressure-resistant smoke exhaust composite air duct according to claim 2, characterized in that: The two ends of the reinforcing rib (4) are riveted or welded to the outer ring (3), the reinforcing rib (4) is welded to the outer surface of the tube body (1), and the directions of the axes of the reinforcing rib (4) and the tube body (1) are the same.

4. The fire-resistant and pressure-resistant smoke exhaust composite air duct according to claim 3, characterized in that: The fixing plate (5) is welded to the outer surface of the tube body (1), and the fixing plate (5) is welded to the frame (6).

5. The fire-resistant and pressure-resistant smoke exhaust composite air duct according to claim 4, characterized in that: The cross-sectional shape of the frame (6) is U-shaped, and the frame (6) is located on one side of the tube body (1).

6. The fire-resistant and pressure-resistant smoke exhaust composite air duct according to claim 5, characterized in that: The rotating rod (7) passes through the guide plate (9), the valve plate (8) is circular in shape, and the guide plate (9) is located outside the frame (6).

7. The fire-resistant and pressure-resistant smoke exhaust composite air duct according to claim 6, characterized in that: The arc angle corresponding to the guide groove (11) is 100 degrees, and the fire-resistant coating (14) is specifically a galvanized layer.

Images