A combinable smoke exhaust duct structure for fire engineering

Abstract

The utility model relates to fire engineering technical field, concretely is a kind of combinable fire engineering exhaust duct structure, including pipe body and connecting mechanism;Pipe body is spliced by four groups of fireproof plate;Connecting mechanism is provided with multiple groups, and two groups of pipe body are connected and fixed by connecting mechanism, and connecting mechanism is constituted by first connecting seat and second connecting seat, and one end of first connecting seat is sealingly connected with the end of corresponding pipe body, and one end of second connecting seat is sealingly connected with the end of corresponding pipe body, and ear seat is provided on first connecting seat and second connecting seat, and two groups of ear seat can be detachably connected.The utility model is provided with connecting mechanism and the setting of pipe body, is convenient according to different exhaust demand flexible assembly or disassembly, and space utilization greatly improves, reduces transportation cost, and improves overall strength and stability, avoids pipeline deformation failure;Multiple sealing can prevent flue gas leakage, improve fire safety factor, and wider applicability.

Description

Technical Field

[0001] This utility model relates to the field of fire protection engineering technology, specifically a combinable smoke exhaust duct structure for fire protection engineering. Background Technology

[0002] Smoke exhaust ducts for fire protection engineering are an important component of building fire protection systems. In the event of a fire, they quickly remove smoke and harmful gases from the building, ensuring the safe evacuation of personnel and the effective rescue by firefighters.

[0003] Chinese Patent CN222811429U discloses a modular smoke exhaust duct structure for fire protection engineering. This modular smoke exhaust duct structure features a ring clamp, and the duct is assembled in segments. Each section of the smoke pipe is inserted into the ring clamp, and the combined steel section on the outer wall of the smoke pipe is inserted into a slot at the ring clamp and fitted into the limiting steel section on the inner wall of the ring clamp, forming a lateral clamping connection to prevent the smoke pipe from shaking during installation. Connecting bolts are then driven in to connect the combined steel section and the limiting steel section. This tight connection with the ring clamp improves the stability of the connection. Smoke pipes can be assembled into long-distance smoke exhaust ducts according to the required quantity and length, solving the problem of disassembly affecting the connection.

[0004] However, the above-mentioned publicly available solutions have the following shortcomings: Although the combination of steel sections and limiting steel sections can splice two adjacent sets of flue pipes, the volume of a single flue pipe section is fixed, making it inconvenient to fold and store. It occupies a large space during transportation, resulting in low utilization of transportation vehicles or storage space and increasing transportation costs. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a combinable smoke exhaust duct structure for fire protection engineering.

[0006] The technical solution of this utility model is as follows: A combinable smoke exhaust duct structure for fire protection engineering, comprising: a pipe body, which is provided in multiple sets, the pipe body being composed of four sets of fireproof plates spliced ​​together, one end of the fireproof plate being provided with an installation groove, and the other end being provided with a corresponding sealing strip, and adjacent sets of fireproof plates being spliced ​​together by the installation groove and the sealing strip; and a connecting mechanism, which is provided in multiple sets, adjacent sets of pipe bodies being connected and fixed by the connecting mechanism, the connecting mechanism being composed of a first connecting seat and a second connecting seat, one end of the first connecting seat being sealed and connected to the end of the corresponding pipe body, and one end of the second connecting seat being sealed and connected to the end of the corresponding pipe body, both the first connecting seat and the second connecting seat being provided with lugs, and the two sets of lugs being detachably connected.

[0007] Preferably, one end of the fireproof board is provided with an installation groove, and the other end is provided with a connecting strip. A retaining strip is provided on the end of the connecting strip away from the fireproof board. Two adjacent sets of fireproof boards are spliced ​​together by the installation groove, the connecting strip and the retaining strip. A sealing element is provided inside the installation groove, and the sealing element abuts against the connecting strip and the retaining strip.

[0008] Preferably, one end of the first connector is provided with a second slot, the tube end corresponding to the second slot is inserted into it, and the tube and the first connector are limited and fixed by multiple sets of fastening bolts. The other end of the first connector is provided with a first slot.

[0009] Preferably, one end of the second connector is equipped with a socket, which is inserted into the first slot on the corresponding first connector. The other end of the second connector is provided with a third slot, which is inserted into the corresponding end of the tube. The tube and the second connector are fixed by multiple sets of fastening bolts.

[0010] Preferably, a sealing ring is provided in the first slot, the second slot, and the third slot, and the sealing ring is made of the same material as the sealing element.

[0011] Preferably, the fireproof board consists of a support layer and a heat insulation layer. The surface of the support layer is uniformly coated with a fireproof layer. The support layer is made of galvanized steel sheet. The support layer consists of an outer layer and an inner layer. The heat insulation layer is placed between the outer layer and the inner layer. The heat insulation layer is made of high-density rock wool.

[0012] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects: By designing the pipe body as being composed of four sets of fireproof panels spliced ​​together, this utility model can be disassembled and stacked flat during transportation. Compared with traditional segmented smoke pipes with fixed volume, the space utilization rate is greatly improved, and more pipe components can be loaded in the same transport vehicle, significantly reducing transportation costs. At the same time, the disassembled fireproof panels are lighter in weight, making manual loading and unloading more convenient and reducing the manpower and equipment input during the handling process. Through the sealing elements and sealing rings, a multi-seal system is formed, effectively preventing high-temperature smoke from leaking from gaps, preventing the spread of fire and the diffusion of harmful gases, and improving the fire safety factor. The fire resistance performance is improved by setting the internal components of the pipe body, and the reinforced design of the support layer and the high-strength fixing of the connecting mechanism improve the overall strength and stability, avoiding pipe deformation and failure. The connecting mechanism makes it easy for the pipe body to be disassembled and replaced individually. Different numbers of pipe bodies can be flexibly combined to form smoke exhaust pipes of the required length according to the smoke exhaust needs of different buildings, making it more applicable. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the connection mechanism structure of this utility model; Figure 3 This is a schematic diagram of the tube structure of this utility model; Figure 4 This is a schematic diagram of the structural components of the tube body of this utility model.

[0014] Reference numerals: 1. Pipe body; 101. Support layer; 102. Insulation layer; 103. Fireproof layer; 2. Fireproof board; 201. Mounting groove; 202. Connecting strip; 203. Locking strip; 204. Sealing element; 3. First connecting seat; 301. First slot; 302. Second slot; 303. Sealing ring; 304. Second connecting seat; 305. Socket; 306. Third slot; 307. Ear seat. Detailed Implementation

[0015] Example 1 like Figures 1 to 3 As shown, this utility model proposes a modular smoke exhaust duct structure for fire protection engineering, including a pipe body 1 and a connecting mechanism. The pipe body 1 is provided in multiple sets, and is composed of four sets of fireproof plates 2 spliced ​​together. One end of each fireproof plate 2 has an installation groove 201, and the other end has a corresponding sealing strip. Adjacent sets of fireproof plates 2 are spliced ​​together by the installation groove 201 and the sealing strip. Multiple connecting mechanisms are provided, and adjacent sets of pipe bodies 1 are connected and fixed through the connecting mechanisms. The connecting mechanisms consist of a first connecting seat 3 and a second connecting seat 304. One end of the first connecting seat 3 is sealed to the end of the corresponding pipe body 1, and one end of the second connecting seat 304 is sealed to the end of the corresponding pipe body 1. Both the first connecting seat 3 and the second connecting seat 304 are provided with ear seats 307. The two sets of ear seats 307 are connected by fastening bolts. The ear seats 307 are designed in a U-shape. Both the first connecting seat 3 and the second connecting seat 304 are made of heat-resistant steel and coated with a high-temperature resistant and anti-corrosion coating. The ear seats 307, the first connecting seat 3, and the second connecting seat 304 are integrally cast structures.

[0016] Furthermore, the sealing strip consists of a connecting strip 202 installed at the end of the fireproof board 2 and a retaining strip 203 installed on the connecting strip 202. The connecting strip 202 and the retaining strip 203 are engaged with the corresponding mounting groove 201. A sealing element 204 abuts in the mounting groove 201. The sealing element 204 abuts against the connecting strip 202 and the retaining strip 203. The sealing element 204 is made of high-temperature resistant silicone rubber. When the pipe body 1 is connected to the connecting mechanism, the sealing element 204 is squeezed and deformed to fill the gap, improve the connection sealing performance, and prevent smoke leakage.

[0017] Furthermore, one end of the first connecting seat 3 is provided with a second slot 302, the end of the tube body 1 corresponding to the second slot 302 is inserted into it, and the tube body 1 and the first connecting seat 3 are limited and fixed by multiple sets of fastening bolts. The other end of the first connecting seat 3 is provided with a first slot 301.

[0018] Furthermore, a socket 305 is installed at one end of the second connecting seat 304, and the socket 305 is engaged with the first slot 301 on the corresponding first connecting seat 3. A third slot 306 is provided at the other end of the second connecting seat 304, and the third slot 306 is engaged with the end of the corresponding tube body 1. The tube body 1 and the second connecting seat 304 are limited and fixed by multiple sets of fastening bolts.

[0019] Furthermore, sealing rings 303 are provided in the first slot 301, the second slot 302 and the third slot 306. The sealing rings 303 are made of the same material as the sealing element 204, which improves the sealing performance at the connection and prevents smoke leakage.

[0020] In this embodiment, the working principle is as follows: During transportation, the pipe body 1 is disassembled into four sets of fireproof boards 2, which are then laid flat, stacked, and loaded into the transport vehicle, greatly saving transportation space; during on-site assembly, the sealing element 204 is first wrapped around the outside of the connecting strip 202 and the retaining strip 203, and then it is engaged with the mounting groove 201. This step can be done with the help of a rubber hammer until the four sets of fireproof boards 2 are spliced ​​together to form a complete pipe body 1. The sealing element 204 on the outside of the retaining strip 203 and the connecting strip 202 is squeezed and deformed, improving the sealing performance of the side wall connection of the pipe body 1; then, one end of one set of pipe body 1 is inserted into the second slot 302 of the first connecting seat 3, and the other set of pipe body 1 is inserted into the second slot 302 of the first connecting seat 3. 1. Insert one end into the third slot 306 of the second connecting seat 304; then insert the socket 305 into the first slot 301 until the two sets of ear seats 307 on the first connecting seat 3 and the second connecting seat 304 are combined. By setting each set of sealing rings 303, the sealing performance of the connection is improved. Finally, the two sets of ear seats 307 that fit together are fixed by fastening bolts. The pipe body 1 is fixed to the first connecting seat 3 or the pipe body 1 is fixed to the second connecting seat 304 by fastening bolts, thereby completing the connection of the two adjacent sets of pipe bodies 1. According to the above method, different sizes of smoke exhaust pipes can be spliced ​​and combined according to the needs of on-site construction.

[0021] Example 2 like Figure 4 As shown, the present invention proposes a combinable smoke exhaust duct structure for fire protection engineering. Compared with Embodiment 1, the fireproof board 2 is composed of a support layer 101 and a heat insulation layer 102. The surface of the support layer 101 is uniformly coated with a fireproof layer 103, which is a fireproof coating with a thickness of 3 to 5 mm. The fireproof coating is an intumescent steel structure fireproof coating, which expands after exposure to fire to form a fireproof and heat-insulating layer, extending the fire resistance limit of the pipe body 1. The support layer 101 is made of galvanized steel plate and consists of an outer layer and an inner layer. The heat insulation layer 102 is disposed between the outer layer and the inner layer. The thickness of both the outer layer and the inner layer is set to 1.2 to 1.5 mm, and the thickness of the heat insulation layer 102 is set to 20 to 30 mm. The heat insulation layer 102 is a high-density rock wool layer, which has the functions of heat insulation and sound absorption and noise reduction, reducing heat transfer inside and outside the pipe body 1, and reducing noise during smoke exhaust.

[0022] In this embodiment, when a fire occurs, the support layer 101 of the pipe body 1 resists deformation by external forces, the heat insulation layer 102 blocks the transmission of high temperature, and the fireproof layer 103 expands when exposed to fire to form a heat insulation layer. The double sealing structure prevents smoke leakage and ensures the stable operation of the smoke exhaust system.

[0023] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A combinable smoke exhaust duct structure for fire protection engineering, characterized in that, include: The pipe body (1) is provided in multiple sets. The pipe body (1) is composed of four sets of fireproof boards (2). One end of the fireproof board (2) is provided with an installation groove (201), and the other end is provided with a sealing strip. Two adjacent sets of fireproof boards (2) are spliced ​​together by the installation groove (201) and the sealing strip. And a connecting mechanism, which is provided in multiple sets, with two adjacent sets of tubes (1) connected and fixed by the connecting mechanism. The connecting mechanism consists of a first connecting seat (3) and a second connecting seat (304). One end of the first connecting seat (3) is sealed to the end of the corresponding tube (1), and one end of the second connecting seat (304) is sealed to the end of the corresponding tube (1). Both the first connecting seat (3) and the second connecting seat (304) are provided with ear seats (307), and the two sets of ear seats (307) are detachably connected.

2. The combinable smoke exhaust duct structure for fire protection engineering according to claim 1, characterized in that, The sealing strip consists of a connecting strip (202) installed at the end of the fireproof board (2) and a retaining strip (203) installed on the connecting strip (202). The connecting strip (202) and the retaining strip (203) are engaged with the corresponding mounting groove (201). A sealing element (204) is provided inside the mounting groove (201). The sealing element (204) abuts against the connecting strip (202) and the retaining strip (203).

3. The combinable smoke exhaust duct structure for fire protection engineering according to claim 1, characterized in that, One end of the first connecting seat (3) is provided with a second slot (302), the end of the tube (1) corresponding to the second slot (302) is inserted, and the tube (1) and the first connecting seat (3) are limited and fixed by multiple sets of fastening bolts. The other end of the first connecting seat (3) is provided with a first slot (301).

4. The combinable smoke exhaust duct structure for fire protection engineering according to claim 3, characterized in that, One end of the second connector (304) is equipped with a socket (305), which is engaged with the first slot (301) on the corresponding first connector (3). The other end of the second connector (304) is provided with a third slot (306), which is engaged with the end of the corresponding tube (1). The tube (1) and the second connector (304) are fixed by multiple sets of fastening bolts.

5. A combinable smoke exhaust duct structure for fire protection engineering according to claim 2 or 4, characterized in that, A sealing ring (303) is provided in each of the first slot (301), the second slot (302) and the third slot (306), and the sealing ring (303) is made of the same material as the sealing element (204).

6. The combinable smoke exhaust duct structure for fire protection engineering according to claim 1, characterized in that, The fireproof board (2) is composed of a support layer (101) and a heat insulation layer (102). The surface of the support layer (101) is uniformly coated with a fireproof layer (103). The support layer (101) is made of galvanized steel plate. The support layer (101) is composed of an outer layer and an inner layer. The heat insulation layer (102) is set between the outer layer and the inner layer. The heat insulation layer (102) is made of high-density rock wool.

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