Fireproof and fire-resistant air pipe

Abstract

The utility model relates to the technical field of smoke prevention and exhaust, and discloses a fireproof and fire-resistant air pipe which comprises a fixing ring, the inner wall of the fixing ring is fixedly connected with a guide pipe used for drainage, the outer surface of the guide pipe is fixedly connected with a plurality of cooling fins used for heat dissipation, the end of the guide pipe is connected with a connecting pipe used for flow guide through a bolt, and the connecting pipe is fixedly connected with the inner wall of the fixing ring. A fireproof mechanism used for heat insulation is inserted into the inner wall of the guide pipe, and the end of the guide pipe is connected with a turbulent flow mechanism used for control through a bolt. According to the fireproof fire-resistant air pipe, the guide pipe and the cooling fins are arranged in a matched mode, the contact area between the device and air can be increased through the cooling fins, heat emitted by the guide pipe can be dissipated into the air through the cooling fins, and therefore the overall temperature of the device is reduced; therefore, excessive influence of heat of the smoke on the conduit is reduced, and the working stability of the conduit is ensured.

Description

Technical Field

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

[0002] Ducts are pipe systems used for air delivery and distribution. There are two types: composite ducts and inorganic ducts. Composite ducts are represented by Durkduct ducts, which can be classified according to cross-sectional shape and material. Duct production: Stainless steel duct production is to apply sealant to the seams such as the bite seams, rivet seams, and the four corners of the flange. Before applying the sealant, the surface dust and oil should be removed. According to the cross-sectional shape, ducts can be divided into circular ducts, rectangular ducts, oblate ducts, etc. Among them, circular ducts have the smallest resistance but the largest height size, and are complex to make, so rectangular ducts are mainly used. According to the material, ducts can be divided into metal ducts, composite ducts, and polymer ducts. Metal ducts are ducts made of various metal materials, and commonly used ones include galvanized iron sheets and stainless steel.

[0003] Chinese patent announcement number CN214027508U discloses a steel fire-resistant and fireproof air duct, which relates to the field of building smoke and exhaust technology, including a pipe body, on which an outer metal layer, a microporous foam material layer, an inorganic material layer and an inner metal layer are stacked in sequence from the outside to the inside, and a bonding layer is provided between the inner metal layer and the inorganic material layer. The utility model improves the overall strength of the composite air duct plate, has excellent fire retardancy, has good fireproof and heat-insulating properties, is lighter than traditional smoke exhaust ducts, and is environmentally friendly and non-toxic.

[0004] However, the utility model has the following problems when actually used:

[0005] This device only insulates the inside of the smoke exhaust pipe. However, after long-term use, the temperature will still rise, and the outside is prone to high temperature, which may cause the risk of burns to the staff. As a result, the overall practicality is not high. Moreover, in the event of smoke re-ignition, the flame is likely to burn along the pipe, causing damage to the equipment. Utility Model Content

[0006] 1. Technical issues to be resolved

[0007] In order to overcome the above-mentioned defects of the prior art, the utility model provides a fireproof and fire-resistant air duct, which solves the problems in the prior art:

[0008] This device only insulates the inside of the smoke exhaust pipe. However, after long-term use, the temperature will still rise, and the outside is prone to high temperature, which may cause the risk of burns to the staff. As a result, the overall practicality is not high. Moreover, in the case of smoke re-ignition, the flame is likely to burn along the pipe, causing damage to the equipment.

[0009] (II) Technical solution

[0010] To achieve the above objectives, the utility model is implemented through the following technical solutions: a fireproof and fire-resistant air duct, comprising a fixing ring, the inner wall of the fixing ring is fixedly connected with a conduit for drainage, the outer surface of the conduit is fixedly connected with a plurality of heat sinks for heat dissipation, the end of the conduit is bolted with a connecting pipe for diversion, the inner wall of the conduit is plugged with a fireproof mechanism for heat insulation, and the end of the conduit is bolted with a spoiler mechanism for control.

[0011] Optionally, a bracket for supporting and fixing is provided at the bottom of the fixing ring, and a fixing bolt for connecting and fixing is threadedly connected to the inner wall of the bracket, and one end of the fixing bolt passes through the bracket and is threadedly connected to the bottom of the fixing ring.

[0012] Optionally, the fire protection mechanism includes a support tube and an asbestos protective layer, the outer surface of the support tube is plugged into the inner wall of the conduit, and the outer surface and inner wall of the support tube are fixedly connected with the asbestos protective layer for heat insulation.

[0013] Optionally, the fire protection mechanism further includes a slot and a heat insulation layer, the slot is opened on the inner wall of the support tube, and the outer surface of the heat insulation layer is plugged into the inner wall of the slot.

[0014] Optionally, one end of the support tube is fixedly connected to a fixing block for connection and fixing, and the other end of the support tube is provided with a fixing groove adapted to the fixing block.

[0015] Optionally, the spoiler mechanism includes a mounting frame and a motor, an end of the mounting frame is connected to an end of the conduit by bolts, and a top of the mounting frame is fixedly mounted to a bottom of the motor.

[0016] Optionally, the spoiler mechanism includes a gate plate and a stopper, the gate plate is arranged inside the mounting frame through a rotating shaft, the top of the gate plate is connected to the output end of the motor through a key, and the stopper is fixed to the inner wall of the mounting frame to fix the gate plate.

[0017] Optionally, the end of the spoiler mechanism is connected to a curved pipe for steering via bolts, and the end of the curved pipe is connected to the end of another of the conduits via bolts.

[0018] Optionally, both ends of the conduit, the end of the connecting pipe, both ends of the mounting frame and both ends of the bent pipe are fixedly connected with flanges for interconnection, and a gasket for sealing is clamped between the two flanges.

[0019] (III) Beneficial effects

[0020] The utility model provides a fireproof and fire-resistant air duct, which has the following beneficial effects:

[0021] 1. The fireproof and fire-resistant air duct is provided with a duct and a heat sink. The heat sink can increase the contact area between the device and the air, and can dissipate the heat emitted by the duct into the air with the help of the heat sink, thereby reducing the overall temperature of the device. The fireproof mechanism can separate the duct from the smoke, thereby reducing the excessive impact of the heat of the smoke on the duct, thereby ensuring the working stability of the duct.

[0022] 2. The fireproof and fire-resistant air duct, through the setting of the spoiler mechanism, can start the spoiler mechanism in sections in time when smoke burns, thereby separating multiple ducts, reducing the spread of flames, and further reducing the impact of flame explosion on the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the explosion structure of the utility model;

[0025] Figure 3 This is a schematic cross-sectional view of the fire protection mechanism of the utility model;

[0026] Figure 4 This is a schematic diagram of the structure of the spoiler mechanism of the utility model;

[0027] Figure 5 This is a schematic diagram of the bracket structure of the utility model.

[0028] In the figure: 1. fixing ring; 2. bracket; 3. conduit; 4. flange; 5. heat sink; 6. gasket; 7. connecting pipe; 8. supporting pipe; 9. asbestos protective layer; 10. slot; 11. thermal insulation layer; 12. fixing block; 13. fixing groove; 14. mounting frame; 15. motor; 16. gate; 17. block; 18. elbow; 19. fixing bolt. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] See also Figures 1 to 5The utility model provides a technical solution: a fireproof and fire-resistant air duct, through the coordinated arrangement of a fixing ring 1 and a bracket 2, the device can be directly installed in a suitable position, and the bracket 2 can lift the device away from the installation surface, so that the heat emitted by the device will not affect the installation environment, and the gas can be stably transported through the arrangement of the conduit 3, and at the same time, with the arrangement of the heat sink 5, the heat sink 5 can be used to increase the contact area between the device and the air, and then the heat sink 5 can be used to dissipate the excess heat emitted by the device to the outside, thereby reducing the surface temperature of the device and reducing the impact on the surrounding environment;

[0031] See also Figure 1 and Figure 2 The setting of the flange 4 makes it easier for the staff to connect and fix the multiple components of the device with bolts, so it is easier for the staff to adjust the installation sequence of the device according to the needs. The setting of the gasket 6 can ensure the sealing of the connection between the flanges 4, thereby reducing the occurrence of gas leakage.

[0032] See also Figure 2 and Figure 3 , through the setting of the fire prevention mechanism, a fire insulation layer on one side can be formed in the conduit 3, and then when the internal gas burns, it can prevent the flame from directly burning the inner wall of the conduit 3, thereby slowing down the heat transfer and making it easier for the staff to take emergency measures. Through the coordinated setting of the support tube 8 and the asbestos protective layer 9, protection can be directly formed on the inner wall of the conduit 3, and then the asbestos protective layer 9 can be used to block the flame, thereby reducing the direct impact of the flame on the conduit 3. Through the setting of the slot 10, a cavity can be formed inside the support tube 8, and then the heat insulation layer 11 can be filled into the slot 10, and then the heat can be blocked for a second time with the help of the heat insulation layer 11, thereby reducing the impact on the conduit 3. The heat insulation layer 11 is asbestos soaked in water. After being heated, it will use the evaporation of water molecules to reduce the overall temperature, thereby further improving the heat insulation and fire prevention effect of the fire prevention mechanism;

[0033] See also Figure 3 By cooperating with the fixing block 12 and the fixing groove 13, when a plurality of support tubes 8 are stacked, the gap between two support tubes 8 can be reduced, thereby reducing the impact of the flame passing through the gap on the conduit 3;

[0034] See also Figure 1 , Figure 2 and Figure 4, through the setting of the spoiler mechanism, it can be directly installed and fixed on the end of the conduit 3 with the help of the mounting frame 14, and then the gate 16 can be driven to rotate with the help of the motor 15. Therefore, when a deflagration occurs at a certain position, the gate 16 can be closed, thereby separating the device into multiple spaces, thereby reducing the further spread of the flame, and the setting of the block 17 can limit the position where the gate 16 is closed, thereby improving the sealing between the gate 16 and the mounting frame 14;

[0035] See also Figure 1 and Figure 2 By setting the elbow 18, the gas delivery angle of the device can be easily changed, so that the device can be adapted to different usage requirements and the practicability of the device can be improved;

[0036] The electrical components mentioned in this article are all connected to an external main controller and 220V mains electricity, and the main controller can be a conventional known device for controlling a computer or the like.

[0037] In the utility model, the working steps of the device are as follows:

[0038] First, the bracket 2 is installed on the bottom of the fixing ring 1 with the help of the fixing bolts 19, and then the conduit 3 is fully fixed. The fire protection mechanism can be further filled into the interior of the conduit 3, and then the multiple components of the device are connected and fixed with the help of bolts, and the gas can be transported. If the gas explodes, the motor 15 can be started to drive the gate 16 to close, thereby reducing the further spread of the flame.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fireproof and fire-resistant air duct, comprising a fixing ring (1), characterized in that: The inner wall of the fixing ring (1) is fixedly connected with a conduit (3) for drainage, the outer surface of the conduit (3) is fixedly connected with a plurality of heat sinks (5) for heat dissipation, the end of the conduit (3) is bolted with a connecting pipe (7) for drainage, the inner wall of the conduit (3) is plugged with a fireproof mechanism for heat insulation, and the end of the conduit (3) is bolted with a spoiler mechanism for control.

2. The fireproof and fire-resistant air duct according to claim 1, characterized in that: A bracket (2) for supporting and fixing is provided at the bottom of the fixing ring (1), and a fixing bolt (19) for connecting and fixing is threadedly connected to the inner wall of the bracket (2), and one end of the fixing bolt (19) passes through the bracket (2) and is threadedly connected to the bottom of the fixing ring (1).

3. The fireproof and fire-resistant air duct according to claim 1, characterized in that: The fire protection mechanism comprises a support tube (8) and an asbestos protective layer (9); the outer surface of the support tube (8) is plugged into the inner wall of the conduit (3); and the outer surface and inner wall of the support tube (8) are both fixedly connected with the asbestos protective layer (9) for heat insulation.

4. The fireproof and fire-resistant air duct according to claim 3, characterized in that: The fire protection mechanism further comprises a slot (10) and a heat insulation layer (11), wherein the slot (10) is opened on the inner wall of the support tube (8), and the outer surface of the heat insulation layer (11) is plugged into the inner wall of the slot (10).

5. The fireproof and fire-resistant air duct according to claim 3, characterized in that: One end of the support tube (8) is fixedly connected to a fixing block (12) for connection and fixing, and the other end of the support tube (8) is provided with a fixing groove (13) adapted to the fixing block (12).

6. The fireproof and fire-resistant air duct according to claim 1, characterized in that: The spoiler mechanism comprises a mounting frame (14) and a motor (15); the end of the mounting frame (14) is connected to the end of the conduit (3) by means of bolts; and the top of the mounting frame (14) is fixedly mounted to the bottom of the motor (15).

7. The fireproof and fire-resistant air duct according to claim 6, characterized in that: The spoiler mechanism comprises a gate plate (16) and a stopper (17); the gate plate (16) is arranged inside the mounting frame (14) via a rotating shaft; the top of the gate plate (16) is connected to the output end of the motor (15) via a key; and the stopper (17) is fixed to the inner wall of the mounting frame (14) for fixing the gate plate (16).

8. The fireproof and fire-resistant air duct according to claim 6, characterized in that: The end of the spoiler mechanism is connected to a bent pipe (18) for steering via bolts, and the end of the bent pipe (18) is connected to the end of another of the guide tubes (3) via bolts.

9. The fireproof and fire-resistant air duct according to claim 6, characterized in that: Both ends of the conduit (3), the end of the connecting pipe (7), both ends of the mounting frame (14) and both ends of the bent pipe (18) are fixedly connected with flanges (4) for interconnection, and a gasket (6) for sealing is clamped between the two flanges (4).

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