CN221801826U - Smoke exhaust pipe - Google Patents

Abstract

The utility model discloses an anti-smoke exhaust pipeline, which belongs to the technical field of construction of an anti-smoke exhaust system and comprises a smoke exhaust pipeline, wherein the other end of the guide pipe is connected with a smoke exhaust fan, a plurality of groups of smoke exhaust ports are formed in the bottom end face of the smoke exhaust pipeline, a dust screen is arranged outside the smoke exhaust ports through bolts, a motor drives a first anti-blocking mechanism, and a filtering mechanism is arranged inside the guide pipe; the first anti-blocking mechanism comprises mounting shells and screws, wherein the two groups of mounting shells are symmetrically arranged on the left side and the right side of the dustproof net, movable seats are sleeved on the outer wall of the screws in a threaded mode, cleaning brushes are detachably arranged on one side walls of the movable seats, which are close to the dustproof net, through bolts, and the other ends of the cleaning brushes are in butt connection with the bottom end faces of the dustproof net. The utility model is convenient for cleaning the dust screen on the smoke exhaust pipeline, avoids the blockage of the dust screen, improves the smoke emission efficiency, can absorb the smoke and fully filter the smoke and then discharge the smoke, reduces the air pollution, and is convenient and quick to use.

Description

Smoke exhaust pipe

Technical Field

The utility model relates to the technical field of smoke exhaust pipes, in particular to a smoke exhaust pipe.

Background Art

Smart manufacturing industrial parks attract high-end manufacturing companies to settle in through investment promotion, and can provide public service platforms such as venture capital and financing. There are many internal equipment in the factory buildings of large-scale smart manufacturing industrial parks, and a good smoke control and exhaust system is essential for safe production. The smoke control and exhaust system is a general term for the smoke control system and the smoke exhaust system. Both are composed of air supply and exhaust ducts, pipe wells, fire dampers, door switch equipment, supply and exhaust fans and other equipment. The smoke control and exhaust ducts in the existing technology are usually installed on the roof of the factory building through brackets.

A Chinese patent with authorization announcement number CN211041295U discloses a smoke exhaust duct, including a first smoke exhaust duct, a second smoke exhaust duct and a smoke exhaust fan. The smoke exhaust duct has a reasonable structural arrangement. The device is mainly provided with a first smoke exhaust duct, a second smoke exhaust duct, a second connecting pipe, a guide pipe and a smoke exhaust fan. The ducts are connected to each other in sequence. A motor is provided on the left side of the smoke exhaust fan. The first pulley, the belt, the second pulley and the motor together constitute a driving structure, which drives the connecting shaft to rotate, so that the smoke exhaust fan starts to rotate and runs to perform smoke exhaust prevention work. The duct is easy to install and smoke exhaust prevention is convenient.

However, the above-mentioned publicly available scheme has the following shortcomings: the stainless steel filter net installed in the smoking port will accumulate a lot of dust and some smoke particles after being used for a period of time, causing the filter net to be blocked, which not only reduces the smoke passing efficiency, but also is inconvenient to clean, which reduces the smoke exhaust efficiency. In addition, the smoke exhaust pipe absorbs the smoke inside the factory and then directly discharges it, and the smoke cannot be filtered, which easily causes air pollution.

Utility Model Content

In order to overcome the defects of the prior art, the technical problem to be solved by the utility model is to propose a smoke exhaust duct that can remove the dust net, avoid blockage, and improve the smoke exhaust efficiency.

To achieve this purpose, the utility model adopts the following technical solutions:

The smoke exhaust pipe is an air filter installed in the roof of a factory building, and one end of the smoke exhaust pipe extends to the outside of the factory building roof and is connected to a guide pipe, and the other end of the guide pipe is connected to a smoke exhaust fan away from the smoke exhaust pipe, and a chimney is provided at the top of the smoke exhaust fan; a plurality of smoke intake ports are opened at the bottom of the smoke exhaust port, and a dust screen is installed at the bottom of the smoke intake port, and anti-clogging devices are provided on the upper and lower sides of the dust screen, and a filtering mechanism is provided inside the guide pipe; the anti-clogging device comprises a mounting shell and a screw, and the mounting shell is provided with two groups, and the two groups of mounting shells are symmetrically arranged on the left and right sides of the dust screen, and the screw is rotatably installed between the two groups of mounting shells, and a movable seat is provided on the threaded sleeve of the screw, and a cleaning brush is detachably installed on a side wall of the movable seat close to the dust screen, and the other end of the cleaning brush abuts against the end surface of the dust screen; a motor is provided on one side of the anti-clogging device below the dust screen, and the motor is drivingly connected to one end of the screw.

The preferred technical solution of the utility model is that the screws of the anti-blocking devices on the upper and lower sides are connected by a transmission mechanism, and the motor is connected to the transmission mechanism.

An optimal technical solution of the present utility model is that the transmission mechanism is a belt transmission mechanism.

An optimal technical solution of the utility model is that a guide rod is slidably connected to the movable seat, and the guide rod is fixed between the mounting shells.

The preferred technical solution of the utility model is that the filtering mechanism includes two limit frames installed on the inner wall of the guide tube, and the inner walls of the two limit frames are respectively slidably inserted with a filter screen and an activated carbon adsorption layer, and the top of the filter screen and the activated carbon adsorption layer extend to the outside of the top of the guide tube and abut against a limit cover, and the limit cover is connected to the top of the guide tube by bolts.

An optimal technical solution of the utility model is that a spring is also provided at the bottom end of the limit frame, a contact plate is installed on the top of the spring, the contact plate is slidably connected to the inner wall of the limit frame, and the top of the contact plate contacts the filter screen or the activated carbon adsorption layer.

The beneficial effects of the utility model are:

The utility model provides a smoke exhaust duct, which can accelerate the emission of smoke inside the factory building through the smoke exhaust fan, and the dustproof net can filter and intercept some particles and dust in the smoke to avoid contamination of the inner wall of the smoke exhaust duct; the motor can simultaneously drive the anti-clogging device to thoroughly clean the dust attached to the top and bottom surfaces of the dustproof net to avoid blockage and improve the smoke emission efficiency; the filtering mechanism can fully filter the smoke, remove large particles of impurities and some odors in the smoke, and reduce pollution emissions.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 is a schematic diagram of the overall structure of the utility model;

FIG2 is a schematic diagram of the connection between the anti-blocking device and the smoke exhaust pipe of the utility model;

FIG3 is a bottom view of the connection between the anti-blocking device and the smoke exhaust pipe of the utility model;

FIG. 4 is a schematic diagram of the connection between the filter mechanism and the guide tube of the utility model.

In the figure:

1. Smoke exhaust duct; 2. Guide pipe; 3. Smoke exhaust fan; 4. Chimney; 5. Smoke outlet; 6. Dust screen; 7. Mounting shell; 8. Screw; 9. Moving seat; 10. Cleaning brush; 11. Motor; 12. Transmission mechanism; 13. Guide rod; 14. Limit frame; 15. Filter; 16. Activated carbon adsorption layer; 17. Limit cover; 18. Spring; 19. Abutment plate; 20. Dust collecting tray.

DETAILED DESCRIPTION

The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

As shown in the figure, this embodiment provides a smoke exhaust duct, including a smoke exhaust duct 1 installed in the roof of a factory building, one end of the smoke exhaust duct 1 extends to the outside of the roof of the factory building and is connected to a guide pipe 2, the end of the guide pipe 2 away from the smoke exhaust duct 1 is connected to a smoke exhaust fan 3, and a chimney 4 is provided on the top of the smoke exhaust fan 3; a plurality of smoking ports 5 are opened at the bottom of the smoke exhaust duct 1, and a dustproof net 6 is installed at the bottom of the smoking port 5, and anti-blocking devices are provided on the upper and lower sides of the dustproof net 6, and a filtering mechanism is provided inside the guide pipe 2; the anti-blocking The plugging device includes a mounting shell 7 and a screw 8. The mounting shell 7 is provided with two groups. The two groups of mounting shells 7 are symmetrically arranged on the left and right sides of the dustproof net 6. The screw 8 is rotatably installed between the two groups of mounting shells 7. A movable seat 9 is provided on the threaded sleeve of the screw 8. A cleaning brush 10 is detachably installed on a side wall of the movable seat 9 close to the dustproof net 6. The other end of the cleaning brush 10 abuts against the end surface of the dustproof net 6. A motor 11 is provided on one side of the anti-blocking device below the dustproof net 6, and the motor 11 is transmission-connected to one end of the screw 8.

Furthermore, the screws 8 of the anti-blocking devices on the upper and lower sides are connected via a transmission mechanism 12 , and the motor 11 is connected to the transmission mechanism 12 .

Furthermore, the transmission mechanism 12 is a belt transmission mechanism 12 .

Furthermore, a guide rod 13 is slidably connected to the movable seat 9 , and the guide rod 13 is fixed between the mounting shells 7 .

Furthermore, a dust collecting pan 20 is provided at the bottom end of the smoke exhaust duct 1. The dust collecting pan 20 corresponds to the anti-clogging device. The dust collecting pan 20 is connected to the bottom end of the smoke exhaust duct 1 through a connecting rod. The dust collecting pan 20 can catch the dust removed by the anti-clogging device to prevent it from falling onto the internal equipment of the factory building of the large-scale intelligent manufacturing industrial park.

The smoke exhaust fan 3 is started by the controller, and the smoke inside the factory building of the large intelligent manufacturing industrial park is quickly absorbed by several groups of smoke outlets 5 at the bottom of the smoke exhaust pipe 1, and then discharged through the guide pipe 2 and the smoke exhaust fan 3. After a period of use, a large amount of dust and some smoke particles will be filtered out on the dustproof net 6. The motor 11 is started by the controller to drive the screw 8 to rotate. Under the guidance of the guide rod 13, the moving seat 9 reciprocates along the screw 8 in a balanced and stable manner, thereby driving the cleaning brush 10 to reciprocate along the guide rod 13 to brush off the dust and particles filtered and intercepted thereon, so as to avoid clogging the dustproof net 6 and interfering with smoke emission;

When the motor 11 starts to drive the anti-blocking device below to move, the transmission mechanism 12 drives the anti-blocking device above to move, thereby cleaning the dust intercepted on the top and bottom surfaces of the dustproof net 6 at the same time, preventing the dustproof net 6 from being blocked by dust and interfering with smoke absorption.

The filtering mechanism includes two limit frames 14 installed on the inner wall of the guide tube 2, and the inner walls of the two limit frames 14 are respectively slidably plugged with a filter screen 15 and an activated carbon adsorption layer 16. The top ends of the filter screen 15 and the activated carbon adsorption layer 16 extend to the outside of the top end of the guide tube 2 and abut against a limit cover 17, and the limit cover 17 is connected to the top end of the guide tube 2 by bolts. There is also a spring 18 at the bottom end of the inner part of the limit frame 14, and an abutment plate 19 is installed at the top end of the spring 18. The abutment plate 19 is slidably connected to the inner wall of the limit frame 14, and the top end of the abutment plate 19 abuts against the filter screen 15 or the activated carbon adsorption layer 16.

The setting of the filter screen 15 and the activated carbon adsorption layer 16 can first filter the large particles of smoke in the passing smoke and then filter the odor, thereby reducing smoke pollution. Unscrew the bolts to remove the limit cover 17, and under the elastic recovery action of the compressed spring 18, the abutment plate 19, the filter screen 15 or the activated carbon adsorption layer 16 are driven to pop up along the limit frame 14, so that the filter screen 15 and the activated carbon adsorption layer 16 can be replaced.

Working principle: The smoke exhaust fan 3 can accelerate the emission of smoke inside the factory building, and the setting of the dustproof net 6 can filter and intercept some particles and dust in the smoke to avoid contamination of the inner wall of the smoke exhaust pipe 1; the motor 11 can simultaneously drive the anti-blocking device to thoroughly clean the dust attached to the top and bottom surfaces of the dustproof net 6 to avoid blockage and improve the efficiency of smoke passage; the setting of the filtering mechanism can fully filter the smoke, remove large particles of impurities and some odors in the smoke, and reduce pollution emissions.

The present invention is described by preferred embodiments, and those skilled in the art will appreciate that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. The present invention is not limited to the specific embodiments disclosed herein, and other embodiments falling within the claims of this application are within the scope of protection of the present invention.

Claims (6)

1. A smoke exhaust duct, characterized in that: It comprises a smoke exhaust pipe (1) installed in the roof of a factory building, one end of the smoke exhaust pipe (1) extends to the outside of the roof of the factory building and is connected to a guide pipe (2), one end of the guide pipe (2) away from the smoke exhaust pipe (1) is connected to a smoke exhaust fan (3), and a chimney (4) is provided at the top of the smoke exhaust fan (3); The bottom end of the smoke exhaust pipe (1) is provided with a plurality of inhalation ports (5), the bottom end of the inhalation port (5) is provided with a dustproof net (6), the upper and lower sides of the dustproof net (6) are provided with anti-blocking devices, and a filtering mechanism is provided inside the guide pipe (2); The anti-clogging device comprises a mounting shell (7) and a screw (8), wherein the mounting shell (7) is provided with two groups, and the two groups of mounting shells (7) are symmetrically arranged on the left and right sides of the dustproof net (6), and the screw (8) is rotatably installed between the two groups of mounting shells (7), and a movable seat (9) is provided on the threaded sleeve of the screw (8), and a cleaning brush (10) is detachably installed on a side wall of the movable seat (9) close to the dustproof net (6), and the other end of the cleaning brush (10) abuts against the end surface of the dustproof net (6); A motor (11) is provided on one side of the anti-blocking device below the dustproof net (6), and the motor (11) is drivingly connected to one end of the screw rod (8). 2. The smoke exhaust duct according to claim 1, characterized in that: The screw rods (8) of the anti-blocking devices on the upper and lower sides are connected in transmission via a transmission mechanism (12), and the motor (11) is connected in transmission to the transmission mechanism (12). 3. The smoke exhaust duct according to claim 2, characterized in that: The transmission mechanism (12) is a belt transmission mechanism (12). 4. The smoke exhaust duct according to claim 3, characterized in that: The movable seat (9) is slidably connected with a guide rod (13), and the guide rod (13) is fixed between the mounting shells (7). 5. The smoke exhaust duct according to claim 1, characterized in that: The filtering mechanism comprises two limit frames (14) mounted on the inner wall of the guide tube (2), the inner walls of the two limit frames (14) are respectively slidably plugged with a filter screen (15) and an activated carbon adsorption layer (16), the top ends of the filter screen (15) and the activated carbon adsorption layer (16) extending to the outside of the top end of the guide tube (2) to abut against a limit cover (17), and the limit cover (17) is connected to the top end of the guide tube (2) by bolts. 6. The smoke exhaust duct according to claim 5, characterized in that: A spring (18) is also provided at the bottom of the limit frame (14), and a contact plate (19) is installed at the top of the spring (18). The contact plate (19) is slidably connected to the inner wall of the limit frame (14), and the top of the contact plate (19) contacts the filter screen (15) or the activated carbon adsorption layer (16).