Silencing device for outlet of fire-fighting smoke exhaust fan

Abstract

The invention discloses a silencing device for an outlet of a fire-fighting smoke exhaust fan. The silencing device comprises a mounting cylinder and a plurality of components assembled in the mounting cylinder, wherein the components comprise a smoke dust cleaning component, a heat exchange silencing component, a smoke dust collecting tank, an adsorption component and a smoke dust discharging component. The smoke cleaning assembly is located at the top of the mounting cylinder, the heat exchange silencing assembly and the smoke collecting tank are connected to the bottom of the mounting cylinder, the adsorption assembly is connected to the bottom of the heat exchange silencing assembly, and the smoke discharging assembly is connected to the bottom of the smoke collecting tank and located on the inner side of the adsorption assembly. The device forms a closed cold air through cavity, and a smoke outlet is formed in the bottom, so that effective smoke emission is ensured. In addition, the device further comprises a stirring assembly, a conveying assembly and a driving assembly which are connected with the adsorption assembly and the smoke dust discharging assembly respectively. Not only is the silencing effect remarkably improved, but also the functions of smoke cooling, dust removal and toxic and harmful substance treatment are integrated, many problems in the prior art are effectively solved, and a safe, environment-friendly and efficient smoke exhaust silencing device is provided for the field of fire protection and smoke exhaust.

Description

Technical Field

[0001] The invention relates to the technical field related to fire fighting fans, in particular to an outlet silencer for a fire fighting smoke exhaust fan. Background Art

[0002] In modern buildings, fire smoke exhaust fans are important firefighting equipment and are widely used to deal with large amounts of smoke generated during fires. However, the existing fire smoke exhaust fans are equipped with mostly simple silencers, which mainly use structural design to reduce the noise generated during the operation of the fan. However, this type of silencer has obvious limitations in practical applications, its silencer effect is not ideal, and it ignores the cooling of smoke, dust removal, and the treatment of toxic and hazardous substances.

[0003] First, these silencers are mainly focused on reducing the mechanical noise and airflow noise when the fan is running, but after the smoke passes through the silencer, the temperature of the smoke does not drop significantly and remains at a high temperature, which may increase the harm of the smoke to the environment. High-temperature smoke not only damages the exhaust channel and equipment, but also increases the risk of fire spread, making it impossible to achieve environmental safety protection.

[0004] Secondly, existing silencers generally lack effective treatment for smoke and dust. Fire smoke often contains a large amount of fine particles and dust, which are discharged along with the smoke. If these particles are not effectively filtered, they may have an adverse effect on the external environment and personnel health. In addition, toxic and harmful substances in smoke are also a problem that existing silencers cannot effectively deal with. Fire smoke is often accompanied by a variety of toxic gases, such as carbon monoxide, cyanide, etc. If these gases are directly discharged into the air without treatment, they will pose a serious threat to rescue personnel and the surrounding environment of the building.

[0005] The limitations of the existing technology are as follows: during the smoke exhaust process, the smoke has a poor cooling effect, smoke dust is not effectively cleaned, and toxic and harmful substances are not adsorbed and treated, resulting in the smoke after treatment still being extremely dangerous. This not only poses a threat to the safety of the fire scene, but also poses a potential risk to the surrounding environment and the health of the people. Therefore, there is an urgent need for a comprehensive fire smoke exhaust silencer that integrates cooling, dust removal, silencer and harmful substance treatment to improve the safety of smoke exhaust and reduce the harm of fire to the environment and people. Summary of the invention

[0006] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a fire smoke exhaust fan outlet silencer device, which not only has a significant silencer effect, but also integrates the smoke cooling, dust removal and toxic and harmful substance treatment functions, solves many problems in the prior art, and provides a highly safe, environmentally friendly and efficient smoke exhaust silencer for the fire smoke exhaust field.

[0007] The technical solution adopted by the present invention to achieve the above-mentioned purpose is: a fire smoke exhaust fan outlet silencer device, including a mounting tube and a smoke cleaning component, a heat exchange silencer component, a smoke collection tank, an adsorption component, and a smoke emission component assembled in the mounting tube.

[0008] The smoke cleaning assembly is arranged at the top of the mounting tube, the heat exchange silencer assembly and the smoke collection tank are both connected to the bottom of the smoke cleaning assembly, the smoke collection tank is arranged on the inner side of the heat exchange silencer assembly, the adsorption assembly is connected to the bottom of the heat exchange silencer assembly, and the smoke exhaust assembly is connected to the bottom of the smoke collection tank and arranged on the inner side of the adsorption assembly.

[0009] The installation tube and the outer walls of the smoke cleaning component, the heat exchange silencer component, and the adsorption component enclose a closed cold air cavity. The bottom of the installation tube is provided with a smoke exhaust port arranged below the adsorption component, and the smoke exhaust port is arranged outside the cold air cavity.

[0010] It also includes a stirring component, a conveying component, and a driving component. The stirring component is assembled in the adsorption component, the conveying component is assembled in the smoke exhaust component, and the driving component is dynamically connected with the stirring component and the conveying component.

[0011] In some of the implementations, in order to ensure that the smoke cleaning component can effectively process the input smoke and achieve the effect of eliminating smoke and reducing kinetic energy, the following technical solutions are provided.

[0012] The smoke and dust cleaning assembly includes a connecting tube A, an air collecting plate, a filter tube, and a dust exhaust duct. The connecting tube A is fixedly installed on the inner side of the installation tube. The air collecting plate is fixedly connected to the inner wall of the connecting tube A. The filter tube is fixedly connected to the bottom of the air collecting plate. Filter holes are provided on the side walls and bottom walls of the filter tube. The dust exhaust duct is fixedly connected to the axis of the air collecting plate and the filter tube.

[0013] The air collecting plates and filter cartridges are provided in multiple groups arranged side by side in the vertical direction. The connecting cylinder A, the outer wall of the filter cartridge and the lower air collecting plates form an air guide cavity. The bottom of the air collecting plates is provided with an air inlet opening which is connected with the inner cavity of the filter cartridge. The dust exhaust duct is provided with dust exhaust openings arranged on the inner side of each layer of the filter cartridges.

[0014] In some of the implementations, in order to enable the smoke cleaning component to effectively eliminate the kinetic energy of the smoke and achieve a sound-absorbing effect, and realize self-cleaning of the filter holes on the filter cartridge to ensure the permeability of the filter cartridge and achieve continuous and efficient treatment of the smoke, the following technical solutions are provided.

[0015] The smoke and dust cleaning assembly also includes a driving impeller and a scraping strip. The driving impeller is rotatably mounted on the periphery of the dust exhaust duct and arranged in the filter cartridge. The scraping strips include a plurality of groups distributed in a circular array and kept in contact with the inner wall of the filter cartridge. Each group of scraping strips is fixedly connected to the driving impeller via a connecting frame.

[0016] In some of the implementations, in order to ensure that the smoke extracted by the fire smoke exhaust fan can be stably transported to the smoke cleaning component, the following technical solution is provided.

[0017] The top of the installation tube is fixedly connected with an assembly cover, the assembly cover is connected with a smoke inlet pipe, and the bottom of the smoke inlet pipe is connected with a corrugated tube A arranged inside the assembly cover.

[0018] In some of the implementations, in order to ensure that the smoke after passing through the outlet of the smoke cleaning component can be stably transmitted to the heat exchange silencer component, and to ensure that the smoke collected by the dust exhaust duct can be stably transported to the smoke collection tank, the following technical solutions are provided.

[0019] The heat exchange and silencer assembly includes a corrugated tube B, the top end of which is fixedly connected to the connecting tube A, the smoke collecting tank is arranged on the inner side of the corrugated tube B, the top end of which is fixedly connected to the dust exhaust duct and maintained in communication, and the inner wall of the corrugated tube B and the outer wall of the smoke collecting tank form a hot air passage cavity.

[0020] In some of the implementations, in order to ensure that the adsorption component can effectively receive the smoke after being treated by the heat exchange and silencer component and realize the adsorption treatment of toxic and harmful substances, and to ensure that the smoke emission component can be stably installed in the adsorption component and connected to the smoke collection tank, the following technical solutions are provided.

[0021] The adsorption assembly includes a connecting tube B and a multi-layer mounting partition fixedly connected to the inner side of the connecting tube B. Ventilation holes are provided on each layer of the mounting partition. The top end of the connecting tube B is fixedly connected to the corrugated tube B. Two adjacent groups of mounting partitions enclose an adsorption chamber.

[0022] The smoke exhaust assembly includes a longitudinal dust exhaust pipe and a transverse dust exhaust pipe which are kept connected. The longitudinal dust exhaust pipe is connected to the bottom of the smoke collection tank and is arranged at the center of the mounting partition. The transverse dust exhaust pipe is arranged at the bottom of the adsorption assembly and extends to the outside of the mounting cylinder.

[0023] In some of the implementations, in order to ensure that the stirring assembly can be stably installed in the adsorption assembly and effectively stir the adsorption filler filled in the adsorption cavity, the following technical solutions are provided.

[0024] The stirring assembly includes a mounting sleeve and stirring blades. The mounting sleeve is rotatably mounted at the axis of the mounting partition and is arranged at the periphery of the longitudinal dust exhaust pipe. Each group of the adsorption chambers is arranged with multiple groups of stirring blades distributed in a circular array. The stirring blades are fixedly mounted on the outer wall of the mounting sleeve, and the mounting sleeve is dynamically connected to the driving assembly.

[0025] In some of the implementations, in order to ensure that the conveying assembly can be stably installed in the smoke exhaust assembly and that the conveying assembly can effectively discharge the smoke collected in the smoke collection tank, the following technical solutions are provided.

[0026] The conveying assembly includes a mounting shaft and a spiral conveying blade. The mounting shaft is rotatably mounted in the longitudinal dust exhaust pipe. The spiral conveying blade is fixedly mounted on the periphery of the mounting shaft and keeps in contact with the inner wall of the longitudinal dust exhaust pipe. The mounting shaft is dynamically connected to the driving assembly.

[0027] In some of the implementations, in order to ensure that the driving component can drive the stirring component and the conveying component to operate independently, the following technical solutions are provided.

[0028] The driving assembly includes a driving shaft A, a driving shaft B, a driving motor and two sets of ratchet mechanisms arranged in opposite directions. The driving shaft A and the driving shaft B are both rotatably installed in the mounting sleeve. The driving shaft A and the driving shaft B are respectively fixed with a driving bevel gear A and a driving bevel gear B. The mounting sleeve is fixed with a transmission bevel gear A which is arranged below the adsorption assembly and meshed with the driving bevel gear A. The mounting shaft is fixed with a transmission bevel gear B which is arranged below the smoke exhaust assembly and meshed with the driving bevel gear B. The two sets of ratchet mechanisms are respectively connected to the driving shaft A and the driving shaft B in power. The driving motor is arranged outside the mounting tube and is connected to the two sets of ratchet mechanisms in power.

[0029] In some of the implementations, in order to ensure that the power of the driving motor can stably transmit the power to the ratchet mechanism, and the ratchet mechanism transmits the power to the driving shaft A or the driving shaft B, the following technical solutions are provided.

[0030] The ratchet mechanism includes a connecting shaft, a pawl, a spring, and an inner ratchet. The pawl is rotatably installed on the outer periphery of the connecting shaft. The spring is assembled between the connecting shaft and the pawl. The inner ratchet is meshed with the pawl. The inner ratchets in the two groups of ratchet mechanisms are fixedly connected to the drive shaft A and the drive shaft B respectively. Transmission sprockets are fixedly connected to the connecting shafts of the two groups of ratchet mechanisms. The two groups of transmission sprockets realize chain transmission through chains. The drive motor is dynamically connected to one of the connecting shafts.

[0031] Beneficial effects of the present invention: 1. Improve the muffler effect: When dealing with smoke, this solution can effectively reduce the kinetic energy of smoke flow through the continuous treatment of corrugated tube A, smoke cleaning components, and heat exchange muffler components, and finally achieve the muffler effect, realizing more effective noise control. Compared with the traditional simple muffler structure, this device can greatly reduce the operating noise of the fire smoke exhaust fan and meet the building's demand for low-noise equipment.

[0032] 2. Efficient cooling treatment: The corrugated tube B in the heat exchange and silencer assembly can effectively increase the indirect contact area between hot smoke and cold air, accelerate the transfer and dissipation of heat, and significantly reduce the temperature of the exhaust smoke. Compared with the existing technology, this solution effectively reduces the damage of high-temperature smoke to the exhaust pipe and the surrounding environment, and reduces the risk of fire spread.

[0033] 3. Effective filtration of smoke and dust: The multi-layer filter cartridge designed in the smoke and dust cleaning component can effectively filter the smoke and dust in the smoke, and the combination of the driving impeller and the scraping strip can realize the continuous cleaning of the filter cartridge to prevent it from being directly discharged into the atmosphere. This not only protects the environment, but also reduces the harm to personnel health and improves the environmental protection performance of the smoke exhaust system.

[0034] 4. Removal of toxic and harmful substances: The adsorption components in the device have excellent adsorption performance and can effectively adsorb toxic and harmful gases in smoke, such as carbon monoxide, cyanide, etc. Through the coordination of the stirring components, the adsorption filler is fully stirred and updated, ensuring efficient adsorption effect. The safety of the fire smoke exhaust fan is significantly improved, the danger of smoke emission is reduced, and a safer working environment is provided for fire rescue personnel and the surrounding environment.

[0035] 5. Strong system operation stability: Through the design of the ratchet mechanism, the device can realize the independent operation of the stirring component and the conveying component, and selectively provide power for the stirring or conveying system under different working conditions, avoiding unnecessary energy consumption of the system.

[0036] In summary, this patented solution not only has a significant sound-absorbing effect, but also integrates the functions of smoke cooling, dust removal and toxic and harmful substance treatment, which solves many problems in the prior art and provides a highly safe, environmentally friendly and efficient smoke exhaust and silencer device for the fire smoke exhaust field. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the internal structure of the present invention; Figure 3 It is a schematic diagram of the structure of the assembly cover; Figure 4 It is a schematic diagram of the structure of the smoke cleaning component; Figure 5 It is a schematic diagram of the structure of the driving impeller and the scraper strip combination; Figure 6 It is a schematic diagram of the installation arrangement of the drive assembly, the stirring assembly, and the drive assembly; Figure 7 It is a schematic diagram of the structure of the heat exchange silencer component, the smoke collection tank, the adsorption component, and the smoke emission component; Figure 8 is a schematic diagram of the structure of the stirring assembly; Fig. 9 It is a structural schematic diagram of the conveying component; Fig.10 is a schematic diagram of the structure of the drive component; Fig.11 This is a schematic diagram of the structure of the ratchet mechanism in a disassembled state.

[0038] In the figure: 1 installation cylinder, 11 cold air cavity, 12 smoke outlet, 13 assembly cover, 14 smoke inlet pipe, 141 corrugated pipe A, 15 base, 16 cold air interface, 21 smoke cleaning component, 211 connecting cylinder A, 2111 assembly ring A, 212 air collecting plate, 2121 air inlet, 213 filter cylinder, 214 dust exhaust duct, 2141 dust exhaust port, 215 air guide cavity, 216 driving impeller, 217 scraping strip, 218 connecting frame, 22 heat exchange silencer component, 221 corrugated pipe B, 222 hot air cavity, 23 smoke collection tank, 24 adsorption component, 241 connecting cylinder B, 2411 assembly Matching ring B, 242 mounting partition, 243 adsorption chamber, 25 smoke exhaust assembly, 251 longitudinal dust exhaust pipe, 2511 assembly frame, 252 transverse dust exhaust pipe, 3 stirring assembly, 31 mounting sleeve, 311 transmission bevel gear A, 32 stirring blade, 4 conveying assembly, 41 mounting shaft, 411 transmission bevel gear B, 42 spiral conveying blade, 5 driving assembly, 51 driving shaft A, 511 driving bevel gear A, 52 driving shaft B, 512 driving bevel gear B, 53 driving motor, 54 ratchet mechanism, 541 connecting shaft, 542 ratchet, 543 reed, 544 inner ratchet, 545 driving sprocket. DETAILED DESCRIPTION

[0039] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0040] Example 1 See also Figure 1-2A fire smoke exhaust fan outlet silencer device includes a mounting tube 1 and a smoke cleaning component 21, a heat exchange silencer component 22, a smoke collection tank 23, an adsorption component 24, and a smoke discharge component 25 assembled in the mounting tube 1.

[0041] The smoke cleaning component 21 is arranged at the top of the mounting tube 1, the heat exchange silencer component 22 and the smoke collection tank 23 are both connected to the bottom of the smoke cleaning component 21, the smoke collection tank 23 is arranged on the inner side of the heat exchange silencer component 22, the adsorption component 24 is connected to the bottom of the heat exchange silencer component 22, and the smoke exhaust component 25 is connected to the bottom of the smoke collection tank 23 and arranged on the inner side of the adsorption component 24.

[0042] The outer walls of the installation tube 1 and the smoke cleaning component 21, the heat exchange silencer component 22, and the adsorption component 24 enclose a closed cold air cavity 11. The bottom of the installation tube 1 is provided with a smoke exhaust port 12 arranged below the adsorption component 24, and the smoke exhaust port 12 is arranged on the outside of the cold air cavity 11.

[0043] It also includes a stirring component 3, a conveying component 4, and a driving component 5. The stirring component 3 is assembled in the adsorption component 24, the conveying component 4 is assembled in the smoke exhaust component 25, and the driving component 5 is connected to the stirring component 3 and the conveying component 4 by power.

[0044] The setting of the installation tube 1 can ensure that the smoke cleaning component 21, the heat exchange silencer component 22, the smoke collection tank 23, the adsorption component 24, and the smoke exhaust component 25 are stably installed therein, thereby forming a cold air passage cavity 11 for transmitting natural cold air.

[0045] The smoke extracted by the fire smoke exhaust fan is transported to the smoke dust cleaning component 21 from the top of the installation tube 1. The smoke dust cleaning component 21 can effectively filter the smoke contained therein and eliminate part of the kinetic energy of the transmitted smoke, thereby achieving the purpose of silencer. The smoke processed by the smoke dust cleaning component 21 enters the heat exchange silencer component 22, and the filtered and intercepted smoke is collected in the smoke dust collection tank 23.

[0046] During the treatment process, natural cold air can also be delivered from bottom to top to the cold air passage cavity 11 inside the installation tube 1. When the natural cold air flows to the outside of the heat exchange and silencer assembly 22, it exchanges heat with the smoke transmitted from top to bottom inside the heat exchange and silencer assembly 22 to reduce the smoke temperature and further eliminate the kinetic energy of the smoke, thereby further achieving the purpose of silencer. Lowering the smoke temperature can ensure that the adsorption assembly 24 effectively adsorbs the toxic and harmful substances contained in the smoke, and avoids thermal desorption caused by heat during the adsorption process.

[0047] The smoke treated by the heat exchange and silencer assembly 22 enters the adsorption assembly 24, and is fully contacted by the adsorption filler (such as activated carbon) filled in the adsorption assembly 24 to adsorb the toxic and harmful substances in the smoke. During this process, the driving assembly 5 drives the stirring assembly 3 to operate, and fully stirs the adsorption filler to improve the adsorption efficiency of toxic and harmful substances. The smoke treated by the adsorption assembly 24 meets the emission standards and is then discharged through the smoke outlet 12.

[0048] When a sufficient amount of smoke is collected in the smoke collection tank 23, the driving component 5 can drive the conveying component 4 to operate, and then the smoke in the smoke collection tank 23 is discharged along the smoke discharge component 25 to ensure that the silencer component continues to operate without being affected by the smoke.

[0049] In order to further improve the sound-absorbing effect, the outer wall and the inner wall of the installation tube 1 may be wrapped with sound-absorbing materials, such as sponge or other porous materials.

[0050] Example 2 See also Figure 3-5 In order to ensure that the smoke cleaning component 21 can effectively process the input smoke and achieve the effect of eliminating smoke and reducing kinetic energy, the following technical solution is provided.

[0051] The smoke and dust cleaning assembly 21 includes a connecting tube A211, an air collecting plate 212, a filter tube 213, and a dust exhaust duct 214. The connecting tube A211 is fixedly installed on the inner side of the installation tube 1. The air collecting plate 212 is fixedly connected to the inner wall of the connecting tube A211. The filter tube 213 is fixedly connected to the bottom of the air collecting plate 212. Filter holes are provided on the side walls and bottom walls of the filter tube 213. The dust exhaust duct 214 is fixedly connected to the axis of the air collecting plate 212 and the filter tube 213.

[0052] The wind collecting plates 212 and the filter cartridges 213 are provided with a plurality of groups arranged side by side in the vertical direction, and the connecting tube A211, the outer wall of the filter cartridges 213 and the lower wind collecting plates 212 form an air guide cavity 215. An air inlet 2121 connected to the inner cavity of the filter cartridges 213 is provided at the bottom of the wind collecting plates 212, and a dust exhaust port 2141 arranged on the inner side of each layer of the filter cartridges 213 is provided on the dust exhaust duct 214.

[0053] An outward-turned assembly ring A2111 is provided at the top of the connecting tube A211, and the assembly ring A2111 is fixedly connected to the top of the mounting tube 1 by means of bolts to ensure that the connecting tube A211 is stably installed on the inner side of the mounting tube 1, and the setting of the connecting tube A211 can ensure that the air collecting plate 212, the filter tube 213 and the dust exhaust duct 214 are fixedly combined on the inner side thereof.

[0054] The bottom of the air gathering plate 212 and the filter cartridge 213 are designed to be a conical structure with a low center and high edges, so as to ensure that the air gathering plate 212 can effectively gather the smoke transmitted from the air guide cavity 215, and transport it to the filter cartridge 213 in the lower layer through the air inlet port 2121, so as to ensure that the smoke filtered and intercepted in the filter cartridge 213 can be gathered at the bottom of the filter cartridge 213, and transported to the dust exhaust duct 214 through the dust exhaust port 2141.

[0055] By arranging a multi-layer air collecting disk 212 and a filter cartridge 213 structure in the connecting tube A211, the transported smoke can pass through each layer of the filter cartridge 213 in sequence, thereby realizing step-by-step filtration of smoke and dust in the smoke to ensure the dust removal effect.

[0056] In order to enable the smoke cleaning component 21 to effectively eliminate the kinetic energy of the smoke and achieve the sound elimination effect, and realize the self-cleaning of the filter holes on the filter cartridge 213 to ensure the permeability of the filter cartridge 213 and realize continuous and efficient treatment of the smoke, the following technical solution is provided.

[0057] The smoke and dust cleaning assembly 21 also includes a driving impeller 216 and a scraping strip 217. The driving impeller 216 is rotatably installed on the periphery of the dust exhaust duct 214 and arranged in the filter cartridge 213. The scraping strip 217 includes a plurality of groups distributed in a circular array and kept in contact with the inner wall of the filter cartridge 213. Each group of scraping strips 217 is fixedly connected to the driving impeller 216 via a connecting frame 218.

[0058] When the smoke cleaning component 21 processes the smoke, the smoke is transported from the air inlet 2121 on the air collecting plate 212 to the filter cartridge 213, thereby driving the driving impeller 216 to operate. The driving impeller 216 can drive the scraper strip 217 to rotate stably on the inner side of the filter cartridge 213 through the connecting frame 218, and then the dust intercepted by the scraper strip 217 and the inner wall of the filter cartridge 213 are swept away and finally input into the dust exhaust duct 214 through the dust exhaust port 2141, and finally collected in the smoke collection tank 23 at the bottom.

[0059] When the smoke drives the driving impeller 216 and the scraper strip 217 to operate, it can eliminate part of the kinetic energy, thereby achieving a sound-absorbing effect. When the smoke is filtered through the filter cartridge 213, the dust carried by the smoke is intercepted and filtered on the filter cartridge 213. The smoke passing through the filter cartridge 213 is transported along the air guide cavity 215 to the filter cartridge 213 below.

[0060] In order to ensure that the smoke extracted by the fire smoke exhaust fan can be stably transported to the smoke cleaning component 21, the following technical solution is provided.

[0061] An assembly cover 13 is fixedly connected to the top of the installation tube 1 , a smoke inlet pipe 14 is connected to the assembly cover 13 , and a corrugated tube A141 arranged inside the assembly cover 13 is connected to the bottom of the smoke inlet pipe 14 .

[0062] The setting of the assembly cover 13 can close the top of the smoke cleaning component 21, and the smoke inlet pipe 14 arranged thereon can be connected to the outlet of the fire smoke exhaust fan. When the smoke transported by the fire smoke exhaust fan passes through the mute pipe, it is affected by the corrugated tube A141 and can achieve a silencing effect, so as to effectively reduce the noise of the input smoke.

[0063] The outer walls of the assembly cover 13 and the smoke inlet pipe 14 may also be covered with sound absorbing material to further reduce the transmission of noise to the outside.

[0064] Example 3 See also Figure 6-7 In order to ensure that the smoke after passing through the outlet of the smoke cleaning component 21 can be stably transmitted to the heat exchange silencer component 22, and to ensure that the smoke collected by the dust exhaust duct 214 can be stably transported to the smoke collection tank 23, the following technical solution is provided.

[0065] The heat exchange and silencer assembly 22 includes a corrugated tube B221, the top of which is fixedly connected to the connecting tube A211, and the smoke collecting tank 23 is arranged on the inner side of the corrugated tube B221. The top of the smoke collecting tank 23 is fixedly connected to the dust exhaust duct 214 and maintained in communication. The inner wall of the corrugated tube B221 and the outer wall of the smoke collecting tank 23 form a hot air passage chamber 222.

[0066] The smoke exhausted from the smoke cleaning component 21 can be stably transported downward along the hot air cavity 222. Cold air interfaces 16 are connected to the top and bottom of the mounting tube 1. Natural cold air in the external environment can enter the cold air cavity 11 through the cold air interface 16 at the bottom. When it flows to the outer position of the corrugated tube B221, it fully exchanges heat with the smoke inside and is discharged from the cold air interface 16 at the top to reduce the temperature of the smoke in the hot air cavity 222.

[0067] The structural characteristics of the corrugated tube B221 can increase the contact area with the smoke to improve the heat exchange and cooling efficiency, and can effectively reduce the flow velocity of the smoke, consume the kinetic energy of the smoke and achieve the purpose of noise reduction.

[0068] In order to ensure that the adsorption component 24 can effectively receive the smoke treated by the heat exchange and silencer component 22 and realize the adsorption treatment of toxic and harmful substances, and to ensure that the smoke emission component 25 can be stably installed in the adsorption component 24 and connected to the smoke collection tank 23, the following technical solution is provided.

[0069] The adsorption assembly 24 includes a connecting tube B241 and a multi-layer mounting partition 242 fixedly connected to the inner side of the connecting tube B241. Ventilation holes are provided on each layer of the mounting partition 242. The top of the connecting tube B241 is fixedly connected to the corrugated tube B221. Two adjacent groups of mounting partitions 242 enclose an adsorption chamber 243.

[0070] The smoke exhaust assembly 25 includes a longitudinal dust exhaust pipe 251 and a transverse dust exhaust pipe 252 which are kept connected. The longitudinal dust exhaust pipe 251 is connected to the bottom of the smoke collecting tank 23 and is arranged at the center of the mounting partition 242. The transverse dust exhaust pipe 252 is arranged at the bottom of the adsorption assembly 24 and extends to the outside of the mounting tube 1.

[0071] The bottom of the connecting tube B241 is fixedly connected with an outward-turned assembly ring B2411, and the assembly ring B2411 is fixedly connected to the inner wall of the installation tube 1 by bolts. The adsorption filler filled in the adsorption chamber 243 and the smoke treated by the heat exchange and silencer component 22 are sequentially input into each layer of the adsorption chamber 243 through the ventilation holes, and then the adsorption filler therein effectively adsorbs the toxic and harmful substances contained therein.

[0072] A valve may be installed at the end of the transverse dust exhaust pipe 252 to keep the smoke collecting tank 23, the smoke exhaust assembly 25 and the dust exhaust duct 214 in a closed state, thereby preventing the smoke input into the smoke cleaning assembly 21 from being directly discharged from the smoke exhaust assembly.

[0073] Example 4 See also Figure 6 , 8 -11. In order to ensure that the stirring component 3 can be stably installed in the adsorption component 24 and effectively stir the adsorption filler filled in the adsorption cavity 243, the following technical solution is provided.

[0074] The stirring assembly 3 includes a mounting sleeve 31 and a stirring blade 32. The mounting sleeve 31 is rotatably mounted at the axis of the mounting partition 242 and is arranged on the periphery of the longitudinal dust exhaust pipe 251. Each group of adsorption chambers 243 is arranged with multiple groups of stirring blades 32 distributed in a circular array. The stirring blades 32 are fixedly mounted on the outer wall of the mounting sleeve 31, and the mounting sleeve 31 is dynamically connected to the driving assembly 5.

[0075] When the driving component 5 drives the installation sleeve 31 to operate, it can drive the stirring blade 32 to operate stably, thereby fully stirring the adsorption fillers in each layer of the adsorption cavity 243, so that the adsorption fillers can efficiently adsorb toxic and harmful substances in the smoke.

[0076] In order to ensure that the conveying assembly 4 can be stably installed in the smoke exhaust assembly 25 and to ensure that the conveying assembly 4 can effectively discharge the smoke collected in the smoke collection tank 23, the following technical solution is provided.

[0077] The conveying component 4 includes a mounting shaft 41 and a spiral conveying blade 42. The mounting shaft 41 is rotatably mounted in the longitudinal dust exhaust pipe 251. The spiral conveying blade 42 is fixedly mounted on the periphery of the mounting shaft 41 and keeps in contact with the inner wall of the longitudinal dust exhaust pipe 251. The mounting shaft 41 is dynamically connected to the driving component 5.

[0078] An assembly frame 2511 is fixedly connected to the top of the longitudinal dust exhaust pipe 251, and the top of the mounting shaft 41 is rotatably mounted on the assembly frame 2511, and the bottom end is rotatably mounted at the connection between the longitudinal dust exhaust pipe 251 and the transverse dust exhaust pipe 252. When the driving motor 53 drives the mounting shaft 41 and the spiral conveying blade 42 to operate, the smoke in the smoke collection tank 23 can be driven to be effectively discharged along the longitudinal dust exhaust pipe 251 and the transverse dust exhaust pipe 252.

[0079] In order to ensure that the driving assembly 5 can drive the stirring assembly 3 and the conveying assembly 4 to operate independently, the following technical solution is provided.

[0080] The driving assembly 5 includes a driving shaft A51, a driving shaft B52, a driving motor 53 and two sets of ratchet mechanisms 54 arranged in opposite directions. The driving shaft A51 and the driving shaft B52 are both rotatably installed in the mounting sleeve 31. The driving shaft A51 and the driving shaft B52 are respectively fixed with a driving bevel gear A511 and a driving bevel gear B512. The mounting sleeve 31 is fixed with a transmission bevel gear A311 arranged below the adsorption assembly 24 and meshing with the driving bevel gear A511. The mounting shaft 41 is fixed with a transmission bevel gear B411 arranged below the smoke emission assembly 25 and meshing with the driving bevel gear B512. The two sets of ratchet mechanisms 54 are respectively connected to the driving shaft A51 and the driving shaft B52. The driving motor 53 is arranged on the outside of the mounting cylinder 1 and is connected to the two sets of ratchet mechanisms 54.

[0081] The power of the driving motor 53 can be transmitted to the driving shaft A51 and the driving shaft B52 through two sets of ratchet mechanisms 54. Since the two sets of ratchet mechanisms 54 are arranged in reverse, when the driving motor 53 outputs power in a specific rotation direction, one and only one set of ratchet mechanisms 54 can receive the power, and drive the stirring component 3 or the conveying component 4 to operate through the combination of the driving bevel gear A511 and the transmission bevel gear A311 or the combination of the driving bevel gear B512 and the transmission bevel gear B411.

[0082] The bottom of the mounting tube 1 is fixedly mounted on the base 15, and a mounting frame A arranged on the inner side of the mounting tube 1 is fixedly connected to the base 15, and the drive shaft A51 and the drive shaft B52 are also rotatably mounted on the mounting frame A to ensure that the drive shaft A51 and the drive shaft B52 are stably mounted in a relatively rotating manner.

[0083] In order to ensure that the power of the driving motor 53 can stably transmit the power to the ratchet mechanism 54, and the ratchet mechanism 54 transmits the power to the driving shaft A51 or the driving shaft B52, the following technical solution is provided.

[0084] The ratchet mechanism 54 includes a connecting shaft 541, a pawl 542, a spring 543, and an inner ratchet 544. The pawl 542 is rotatably installed on the outer periphery of the connecting shaft 541. The spring 543 is assembled between the connecting shaft 541 and the pawl 542. The inner ratchet 544 is meshed with the pawl 542. The inner ratchet 544 in the two groups of ratchet mechanisms 54 are respectively fixedly connected to the drive shaft A51 and the drive shaft B52. A transmission sprocket 545 is fixedly connected to the connecting shaft 541 of the two groups of ratchet mechanisms 54. The two groups of transmission sprockets 545 realize chain transmission through chains. The drive motor 53 is power-connected to one of the groups of connecting shafts 541.

[0085] The setting of the spring leaf 543 can keep the pawl 542 in an open state and mesh with the corresponding inner ratchet 544. Since the two sets of ratchet mechanisms 54 are arranged in reverse, when the drive motor 53 rotates in a specific direction, the two sets of connecting shafts 541 can be driven to operate synchronously through the combination of the transmission sprocket 545 and the chain.

[0086] In the two groups of ratchet mechanisms 54, one group of ratchet pawls 542 can drive the inner ratchet 544 to operate stably, while the other group of ratchet pawls 542 slides relative to the corresponding inner ratchet 544 and cannot transmit power, thereby enabling the stirring component 3 and the conveying component 4 to operate independently.

[0087] A mounting frame B is fixedly connected to the outer side of the mounting tube 1 , and the connecting shafts 541 of the two sets of ratchet mechanisms 54 are rotatably mounted on the mounting frame B to ensure stable installation of the connecting shafts 541 .

[0088] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0089] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A fire smoke exhaust fan outlet silencer, characterized in that: It comprises a mounting tube (1) and a smoke cleaning component (21), a heat exchange silencer component (22), a smoke collection tank (23), an adsorption component (24), and a smoke emission component (25) assembled in the mounting tube (1); The smoke cleaning component (21) is arranged at the top of the installation cylinder (1); the heat exchange silencer component (22) and the smoke collection tank (23) are both connected to the bottom of the smoke cleaning component (21); the smoke collection tank (23) is arranged on the inner side of the heat exchange silencer component (22); the adsorption component (24) is connected to the bottom of the heat exchange silencer component (22); and the smoke exhaust component (25) is connected to the bottom of the smoke collection tank (23) and arranged on the inner side of the adsorption component (24); The installation tube (1) and the outer walls of the smoke cleaning component (21), the heat exchange silencer component (22), and the adsorption component (24) form a closed cold air passage cavity (11); the bottom of the installation tube (1) is provided with a smoke exhaust port (12) arranged below the adsorption component (24); the smoke exhaust port (12) is arranged outside the cold air passage cavity (11); It also comprises a stirring assembly (3), a conveying assembly (4), and a driving assembly (5); the stirring assembly (3) is assembled in the adsorption assembly (24), the conveying assembly (4) is assembled in the smoke exhaust assembly (25), and the driving assembly (5) is connected to the stirring assembly (3) and the conveying assembly (4) in a power connection.

2. A fire smoke exhaust fan outlet silencer device according to claim 1, characterized in that: The smoke and dust cleaning assembly (21) comprises a connecting tube A (211), an air collecting disk (212), a filter tube (213), and a dust exhaust duct (214); the connecting tube A (211) is fixedly mounted on the inner side of the mounting tube (1); the air collecting disk (212) is fixedly connected to the inner wall of the connecting tube A (211); the filter tube (213) is fixedly connected to the bottom of the air collecting disk (212); filter holes are provided on the side wall and the bottom wall of the filter tube (213); and the dust exhaust duct (214) is fixedly connected to the axis of the air collecting disk (212) and the filter tube (213); The air collecting disk (212) and the filter cartridge (213) are provided in a plurality of groups arranged side by side in a vertical direction; the outer wall of the connecting cylinder A (211), the filter cartridge (213) and the lower air collecting disk (212) enclose an air guide cavity (215); an air inlet opening (2121) communicating with the inner cavity of the filter cartridge (213) is provided at the bottom of the air collecting disk (212); and a dust exhaust port (2141) arranged on the inner side of each layer of the filter cartridge (213) is provided on the dust exhaust duct (214).

3. A fire smoke exhaust fan outlet silencer device according to claim 2, characterized in that: The smoke and dust cleaning assembly (21) further comprises a driving impeller (216) and a scraping strip (217); the driving impeller (216) is rotatably mounted on the periphery of the dust exhaust duct (214) and arranged in the filter cartridge (213); the scraping strip (217) comprises a plurality of groups distributed in an annular array and in close contact with the inner wall of the filter cartridge (213); each group of scraping strips (217) is fixedly connected to the driving impeller (216) via a connecting frame (218).

4. A fire smoke exhaust fan outlet silencer device according to claim 3, characterized in that: The top of the installation tube (1) is fixedly connected to an assembly cover (13), the assembly cover (13) is connected to a smoke inlet pipe (14), and the bottom of the smoke inlet pipe (14) is connected to a corrugated tube A (141) arranged inside the assembly cover (13).

5. A fire smoke exhaust fan outlet silencer device according to claim 2, characterized in that: The heat exchange silencer assembly (22) comprises a corrugated tube B (221), the top end of the corrugated tube B (221) being fixedly connected to the connecting tube A (211), the smoke dust collecting tank (23) being arranged on the inner side of the corrugated tube B (221), the top end of the smoke dust collecting tank (23) being fixedly connected to the dust exhaust duct (214) and maintaining communication therewith, and the inner wall of the corrugated tube B (221) and the outer wall of the smoke dust collecting tank (23) forming a hot air passage cavity (222).

6. A fire smoke exhaust fan outlet silencer device according to claim 5, characterized in that: The adsorption assembly (24) comprises a connecting tube B (241) and a plurality of mounting partitions (242) fixedly connected to the inner side of the connecting tube B (241), each layer of the mounting partitions (242) being provided with ventilation holes, the top end of the connecting tube B (241) being fixedly connected to the corrugated tube B (221), and two adjacent groups of mounting partitions (242) enclosing an adsorption chamber (243); The smoke exhaust assembly (25) comprises a longitudinal dust exhaust pipe (251) and a transverse dust exhaust pipe (252) which are maintained in communication with each other; the longitudinal dust exhaust pipe (251) is in communication with the bottom of the smoke collection tank (23) and is arranged at the center of the mounting partition (242); the transverse dust exhaust pipe (252) is arranged at the bottom of the adsorption assembly (24) and extends to the outside of the mounting cylinder (1).

7. A fire smoke exhaust fan outlet silencer device according to claim 6, characterized in that: The stirring assembly (3) comprises a mounting sleeve (31) and stirring blades (32); the mounting sleeve (31) is rotatably mounted at the axis of the mounting partition (242) and arranged at the periphery of the longitudinal dust exhaust pipe (251); each group of the adsorption chambers (243) is arranged with a plurality of groups of stirring blades (32) distributed in a ring array; the stirring blades (32) are fixedly mounted on the outer wall of the mounting sleeve (31); and the mounting sleeve (31) is dynamically connected to the driving assembly (5).

8. A fire smoke exhaust fan outlet silencer device according to claim 7, characterized in that: The conveying assembly (4) comprises a mounting shaft (41) and a spiral conveying blade (42); the mounting shaft (41) is rotatably mounted in the longitudinal dust exhaust pipe (251); the spiral conveying blade (42) is fixedly mounted on the periphery of the mounting shaft (41) and is kept in close contact with the inner wall of the longitudinal dust exhaust pipe (251); and the mounting shaft (41) is dynamically connected to the driving assembly (5).

9. A fire smoke exhaust fan outlet silencer device according to claim 8, characterized in that: the drive assembly (5) comprises a drive shaft A (51), a drive shaft B (52), a drive motor (53) and two sets of ratchet mechanisms (54) arranged in opposite directions, the drive shaft A (51) and the drive shaft B (52) are both rotatably mounted in the mounting sleeve (31), the drive shaft A (51) and the drive shaft B (52) are respectively fixedly connected to a drive bevel gear A (511) and a drive bevel gear B (512), the mounting sleeve (31) A transmission bevel gear A (311) is fixedly connected to the upper portion and is arranged below the adsorption component (24) and is kept in mesh with the driving bevel gear A (511); a transmission bevel gear B (411) is fixedly connected to the mounting shaft (41) and is arranged below the smoke exhaust component (25) and is kept in mesh with the driving bevel gear B (512); the two sets of ratchet mechanisms (54) are respectively connected to the driving shaft A (51) and the driving shaft B (52) by power; and the driving motor (53) is arranged outside the mounting cylinder (1) and is connected to the two sets of ratchet mechanisms (54) by power.

10. A fire smoke exhaust fan outlet silencer device according to claim 9, characterized in that: The ratchet mechanism (54) comprises a connecting shaft (541), a pawl (542), a leaf spring (543), and an inner ratchet (544); the pawl (542) is rotatably mounted on the outer periphery of the connecting shaft (541); the leaf spring (543) is mounted between the connecting shaft (541) and the pawl (542); the inner ratchet (544) and the pawl (542) are kept in meshing engagement; the inner ratchet (544) in the two groups of ratchet mechanisms (54) are respectively fixedly connected to a drive shaft A (51) and a drive shaft B (52); a transmission sprocket (545) is fixedly connected to the connecting shafts (541) of the two groups of ratchet mechanisms (54); the two groups of transmission sprockets (545) realize chain transmission through chains; and the drive motor (53) is power-connected to one of the groups of connecting shafts (541).

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