Fire-fighting smoke exhaust fan with low noise

Abstract

The utility model discloses a fire-fighting smoke exhaust fan with low noise, which belongs to the technical field of smoke exhaust fans and comprises a fan body, a limit groove is arranged on the fan body, a fixing frame is slidably mounted in the limit groove, an activated carbon block is fixedly mounted in the fixing frame, and a plurality of carbon holes are arranged on the activated carbon block. According to the low-noise smoke exhaust fan for fire fighting, after replacement, fixing can be conducted again through fixing bolts, then an air bellow is started, smoke and toxic gas are sucked into a material pipe through the air bellow and then reach the fan body through the material inlet pipe, then the smoke and the toxic gas can pass through carbon holes formed in activated carbon blocks, and the smoke and the toxic gas are discharged into the fan body. Harmful substances can be adsorbed by the activated carbon blocks, then pass through a plurality of ventilation pipes installed on the air bellow and are discharged through the discharging pipe, the feeding pipe and the discharging pipe can be rapidly disassembled, trouble and labor are saved, environment pollution is avoided, and the health of surrounding people is guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of smoke exhaust fan technology, specifically a fire-fighting smoke exhaust fan with low noise. Background Technology

[0002] Fire exhaust fans are key equipment in fire protection systems. In the event of a fire, they can promptly exhaust smoke, heat, and toxic and harmful gases, reducing smoke concentration and creating favorable conditions for personnel evacuation and fire rescue. They are generally characterized by high temperature resistance, corrosion resistance, and reliable operation. They are often installed on the roof, machine room, or other locations of buildings, and achieve forced smoke exhaust by rotating the impeller driven by a motor.

[0003] Currently, existing exhaust fans often directly release smoke and toxic gases into the air, which not only pollutes the environment but also harms the health of people in the vicinity, causing significant economic losses. In addition, the inlet and outlet pipes of the exhaust fan cannot be quickly disassembled, which is time-consuming and labor-intensive. Utility Model Content

[0004] To overcome the above-mentioned defects, this utility model provides a fire-fighting smoke exhaust fan with low noise, which solves the problem that existing smoke exhaust fans often directly discharge smoke and toxic gases into the air, which not only pollutes the environment, but also harms the health of people around them and causes a lot of economic losses. At the same time, it is time-consuming and laborious to disassemble the inlet and outlet pipes of the smoke exhaust fan.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a low-noise fire-fighting smoke exhaust fan, comprising a fan body, a limiting groove on the fan body, a fixed frame slidably installed inside the limiting groove, an activated carbon block fixedly installed inside the fixed frame, the activated carbon block having a plurality of carbon holes, two connecting blocks fixedly installed on the fixed frame, two mounting plates fixedly installed on the fan body, mounting grooves on the two mounting plates, mounting rings fixedly installed on the mounting plates, the mounting rings corresponding to the mounting grooves, and an inlet pipe and a outlet pipe respectively installed in the two mounting grooves.

[0006] As a further embodiment of this utility model: a sound insulation plate is fixedly installed on the outer wall of the fan body, and a handle is fixedly installed between the two connecting blocks.

[0007] As a further embodiment of this utility model: the fan body has four slots inside, two slots as a group, and a card plate is engaged in the slot.

[0008] As a further embodiment of this utility model: a bellows is fixedly installed on the card plate, and several ventilation pipes are fixedly installed at both ends of the bellows.

[0009] As a further scheme of the utility model: the fixed frame is provided with a sealing cover, and the mounting ring is provided with a sealing ring.

[0010] As a further scheme of the utility model: two fixing bolts are arranged on the mounting ring, and the fixing bolts penetrate through the sealing ring and the mounting ring and are connected with the inlet pipe and the discharge pipe.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] 1. The fire-fighting smoke exhaust fan with low noise is provided with an inlet pipe, a discharge pipe, fixing bolts and a wind box, when the inlet pipe or the discharge pipe needs to be replaced during work, the fixing bolts penetrating through the sealing ring and the mounting ring are disassembled, the fixing bolts are separated from the discharge pipe or the inlet pipe, then the inlet pipe or the discharge pipe can be taken down, after replacement, the fixing bolts can be used for re-fixing, then the wind box is started, the wind box sucks smoke and toxic gas into the inlet pipe, then the smoke and the toxic gas pass through the carbon holes in the activated carbon blocks, harmful substances in the smoke and the toxic gas are adsorbed by the activated carbon blocks, then the smoke and the toxic gas pass through the plurality of ventilation pipes arranged on the wind box, and then are discharged from the discharge pipe, the inlet pipe and the discharge pipe can be quickly disassembled, work is saved, the environment is prevented from being polluted, and the health of people around is ensured.

[0013] 2. The fire-fighting smoke exhaust fan with low noise is provided with a handle, a connecting block, activated carbon blocks and a fixed frame, when working, the sealing cover is first taken down by a worker, then the handle is pulled, the handle moves to drive the connecting block to move, the connecting block moves to drive the fixed frame to move, the fixed frame moves to drive the activated carbon blocks arranged therein to move synchronously, until the fixed frame is pulled out of the limiting groove, the carbon holes in the activated carbon blocks blocked by impurities can be cleaned, the working of the smoke exhaust fan is prevented from being affected, the smoke and the toxic gas are prevented from being incompletely purified, and the working efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0015] Figure 2 It is a structure schematic view of the connection between the wind box and the clamping plate of the utility model;

[0016] Figure 3 It is a structure schematic view of the connection between the mounting plate and the mounting ring of the utility model;

[0017] Figure 4 It is a structure schematic view of the fixed frame and the handle of the utility model;

[0018] In the figure: 1, fan body; 2, sound insulation board; 3, mounting plate; 4, inlet pipe; 5, discharge pipe; 6, bellows; 7, clamping plate; 8, ventilation pipe; 9, sealing ring; 10, mounting groove; 11, mounting ring; 12, clamping groove; 13, fixing bolt; 14, limiting groove; 15, connecting block; 16, handle; 17, sealing cover; 18, fixed frame; 19, activated carbon block; 20, carbon hole. DETAILED DESCRIPTION

[0019] The technical scheme of the patent will be further described in detail in combination with specific embodiments.

[0020] As Figures 1-4 shown, the utility model provides a kind of technical scheme: a little noisy smoke exhaust fan for fire fighting, including fan body 1, four clamping grooves 12 are set in fan body 1, two clamping grooves 12 are a group, clamping groove 12 is clamped with clamping plate 7, clamping plate 7 is fixedly installed with bellows 6, bellows 6 both ends are fixedly installed with several ventilation pipes 8, because of the installation of bellows 6, smoke and toxic gas can be quickly sucked into inlet pipe 4 by bellows 6, then reach fan body 1 by inlet pipe 4, after processing, it will pass the several ventilation pipes 8 installed on bellows 6, then be discharged by discharge pipe 5, ensure the normal operation of smoke exhaust work.

[0021] Sound insulation board 2 is fixedly installed on the outer wall of fan body 1, handle 16 is fixedly installed between two connecting blocks 15, because of the installation of sound insulation board 2, smoke exhaust fan can generate larger noise when running, sound insulation board 2 can effectively block the spread of sound, reduce noise interference to surrounding environment and personnel, provide relatively quiet environment for fire rescue work and surrounding area.

[0022] Limiting groove 14 is set on fan body 1, fixed frame 18 is slidably installed in limiting groove 14, sealing cover 17 is installed on fixed frame 18, sealing ring 9 is sleeved on mounting ring 11, because of the installation of sealing cover 17 and sealing ring 9, smoke or toxic gas can be prevented from leaking out from the gap of fan body 1 by sealing cover 17 and sealing ring 9 when fan body 1 is working, improve the sealing property of fan body 1.

[0023] The active carbon block 19 is internally fixedly installed in the fixed frame 18, a plurality of carbon holes 20 are formed in the active carbon block 19, two connecting blocks 15 are fixedly installed on the fixed frame 18, two installation plates 3 are fixedly installed on the fan body 1, installation grooves 10 are formed in the two installation plates 3, an installation ring 11 is fixedly installed on the installation plate 3, two fixing bolts 13 are installed on the installation ring 11, the fixing bolts 13 pass through the sealing ring 9 and the installation ring 11 and are connected with the inlet pipe 4 and the discharge pipe 5, when the inlet pipe 4 or the discharge pipe 5 needs to be replaced, the fixing bolts 13 passing through the sealing ring 9 and the installation ring 11 are disassembled, the fixing bolts 13 are separated from the discharge pipe 5 or the inlet pipe 4, then the inlet pipe 4 or the discharge pipe 5 can be taken down, after replacement, the fixing bolts 13 can be used for re-fixing, so that the work is saved, the labor is saved and the work efficiency is improved.

[0024] The installation ring 11 corresponds to the installation groove 10, and the inlet pipe 4 and the discharge pipe 5 are respectively installed in the two installation grooves 10.

[0025] The working principle of the utility model is as follows: when working, when the inlet pipe 4 or the discharge pipe 5 needs to be replaced, the fixing bolts 13 passing through the sealing ring 9 and the installation ring 11 are disassembled, the fixing bolts 13 are separated from the discharge pipe 5 or the inlet pipe 4, then the inlet pipe 4 or the discharge pipe 5 can be taken down, after replacement, the fixing bolts 13 can be used for re-fixing, then the bellows 6 is started, the bellows 6 sucks the smoke and toxic gas into the inlet pipe 4, then reaches the fan body 1 through the inlet pipe 4, then the smoke and toxic gas pass through the carbon holes 20 formed in the active carbon block 19, the harmful substances in the smoke and toxic gas are adsorbed by the active carbon block 19, then pass through the plurality of ventilation pipes 8 installed on the bellows 6, and then are discharged from the discharge pipe 5.

[0026] When working, the sealing cover 17 is first taken down, then the handle 16 is pulled, the handle 16 moves to drive the connecting block 15 to move, the connecting block 15 moves to drive the fixed frame 18 to move, the fixed frame 18 moves to drive the active carbon block 19 installed therein to move synchronously, until the fixed frame 18 is pulled out of the limiting groove 14, then the carbon holes 20 blocked by impurities on the active carbon block 19 can be cleaned.

[0027] In the description of the utility model, it should be explained that, unless there is definite provision and limitation, the terms "installation", "connection", "connection" should be understood in a broad sense, for example, it can be fixed connection, can also be detachable connection, or integrally connected, can be mechanical connection, can also be electrical connection, can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0028] The preferred embodiments of the present patent have been described in detail, but the present patent is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present patent.

Claims

1. A low-noise smoke exhaust fan for fire fighting, comprising a fan body (1), characterized in that: The fan body (1) is provided with a limiting groove (14), a fixed frame (18) is slidably installed in the limiting groove (14), an activated carbon block (19) is fixedly installed in the fixed frame (18), a plurality of carbon holes (20) are formed in the activated carbon block (19), two connecting blocks (15) are fixedly installed on the fixed frame (18), two mounting plates (3) are fixedly installed on the fan body (1), mounting grooves (10) are formed in the two mounting plates (3), mounting rings (11) are fixedly installed on the mounting plates (3), the mounting rings (11) correspond to the mounting grooves (10), and a feeding pipe (4) and a discharging pipe (5) are respectively installed in the two mounting grooves (10).

2. A fire service smoke exhaust fan of the type defined in claim 1, characterised in that: The fan body (1) is provided with a soundproof board (2) fixedly installed on the outer wall, and a handle (16) is fixedly installed between the two connecting blocks (15).

3. A fire service smoke exhaust fan of claim 1, wherein: The fan body (1) is provided with four clamping grooves (12), and two clamping grooves (12) form a group.

4. A fire service smoke exhaust fan of the type defined in claim 3, characterised in that: The clamping plate (7) is provided with a wind box (6) fixedly installed thereon, and a plurality of ventilation pipes (8) are fixedly installed at two ends of the wind box (6).

5. A fire service smoke exhaust fan of claim 1, wherein: The fixed frame (18) is provided with a sealing cover (17), and the mounting ring (11) is provided with a sealing ring (9) sleeved thereon.

6. A fire service smoke exhaust fan of the type defined in claim 5, characterised in that: The mounting ring (11) is provided with two fixing bolts (13), the fixing bolts (13) penetrate through the sealing ring (9) and the mounting ring (11) and are connected with the feeding pipe (4) and the discharging pipe (5).

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