A building smoke exhaust duct structure and its construction method

Abstract

The present application discloses a building smoke exhaust duct structure and its construction method, belonging to the field of smoke exhaust ducts. The building smoke exhaust duct structure includes a first smoke exhaust duct, a second smoke exhaust duct, and a third smoke exhaust duct with the same cross-section. One end of the first smoke exhaust duct is connected to the bottom end of the second smoke exhaust duct, and the top end of the second smoke exhaust duct is connected to one end of the third smoke exhaust duct. T-shaped tracks are fixedly connected inside the first smoke exhaust duct, the second smoke exhaust duct, and the third smoke exhaust duct, and a duct cleaning assembly is provided on the T-shaped tracks. A notch is opened at the bottom end of the second smoke exhaust duct, and a threaded connection head is fixedly connected to the bottom end of the notch. An oil stain collection assembly is threadedly connected to the bottom end of the threaded connection head. The duct cleaning assembly specifically includes: a cleaning vehicle, and a T-shaped rail groove for the T-shaped track to pass through is opened on one side inside the cleaning vehicle. The present invention can reduce the oil stains attached to the inner wall of the smoke exhaust duct, thereby reducing the growth of bacteria.

Description

Technical Field

[0001] The present application relates to a smoke exhaust duct structure, specifically a building smoke exhaust duct structure and its construction method. Background Art

[0002] The oil fume emitted during normal cooking is a large number of thermal oxidative decomposition products generated by edible oil and food under high-temperature conditions. Volatile nitrosamines and other known mutagenic carcinogens have also been found in cooking fume. In order to prevent the oil fume from affecting people's health, smoke exhaust ducts and range hoods are arranged in residences. The range hood is used to discharge the cooking fume into the smoke exhaust duct, and then it is discharged outdoors through the smoke exhaust duct.

[0003] The existing building smoke exhaust duct structure mainly consists of a main duct and a secondary duct. Among them, the cross-section of the main duct and the secondary duct consists of two parallel rectangular ducts, which vertically pass through each floor. At the air inlet connected to the range hood on each floor of the building, there is a certain distance between the secondary duct and the main duct. However, our current common building smoke exhaust and ventilation systems are all cylindrical structures with open tops. When the wind blows, it is easy to cause the backflow of flue gas, and when it rains, rain leakage will occur, eroding the smoke exhaust and ventilation devices inside the building. If a top cover is built at the top of the flue to prevent wind and rain, it will cause poor flue gas discharge. Therefore, a smoke exhaust duct parallel to the horizontal plane is installed at the air outlet.

[0004] The existing technology has the following problems: 1. After long-term use of the smoke exhaust duct, a large amount of oil stains adhere to its inner wall, which is prone to breed a large number of bacteria and affect the hygiene inside the building. Therefore, those skilled in the art have provided a building smoke exhaust duct structure and its construction method to solve the problems raised in the above background art. Summary of the Invention

[0005] The purpose of the present invention is to provide a building smoke exhaust duct structure and its construction method, which can reduce the oil stains adhering to the inner wall of the smoke exhaust duct, thereby reducing the breeding of bacteria, so as to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] A building smoke exhaust duct structure includes a first smoke exhaust duct, a second smoke exhaust duct, and a third smoke exhaust duct with the same cross-section. One end of the first smoke exhaust duct is connected to the bottom end of the second smoke exhaust duct, and the top end of the second smoke exhaust duct is connected to one end of the third smoke exhaust duct. T-shaped tracks are fixedly connected inside the first smoke exhaust duct, the second smoke exhaust duct, and the third smoke exhaust duct, and a duct cleaning assembly is arranged on the T-shaped tracks. A notch is opened at the bottom end of the second smoke exhaust duct, and a threaded connector is fixedly connected to the bottom end of the notch. An oil stain collection assembly is threadedly connected to the bottom end of the threaded connector.

[0008] As a further solution of the present invention: The pipeline cleaning component specifically includes: a cleaning vehicle. A T-shaped rail groove for the T-shaped track to pass through is formed on one side inside the cleaning vehicle, and a through groove is formed on the other side inside the cleaning vehicle. A driving wheel is movably connected to the middle position inside the cleaning vehicle, and the outer side surface of the driving wheel contacts the T-shaped track. A limiting support member is provided between the T-shaped track and the T-shaped rail groove.

[0009] As a further solution of the present invention: Filter nets are fixedly connected to both ends of the through groove.

[0010] As a further solution of the present invention: Shovel blocks are fixedly connected to the edges of both sides of the cleaning vehicle.

[0011] As a further solution of the present invention: The limiting support member specifically includes: a first limiting wheel and a second limiting wheel. The number of the first limiting wheels is four, and the four first limiting wheels are pairwise embedded on both sides of the opening of the T-shaped rail groove and can move and contact the T-shaped track. The number of the second limiting wheels is the same as that of the first limiting wheels, and the four second limiting wheels are pairwise embedded on both sides of the side surface of the T-shaped rail groove close to the opening and can move, and the second limiting wheels contact the T-shaped track.

[0012] As a further solution of the present invention: The driving wheel specifically includes: a wheel body. Gears are fixedly connected to both side surfaces of the wheel body, and the outer diameter of the gears is smaller than the outer diameter of the wheel body.

[0013] As a further solution of the present invention: The second exhaust pipe is perpendicular to the horizontal plane, and two parallel chains are fixedly connected to the T-shaped track inside the second exhaust pipe, and the chains are matched with the gears.

[0014] As a further solution of the present invention: The oil pollution collection component specifically includes: an oil pollution collection bottle. The top of the oil pollution collection bottle is open and is threadedly connected to a threaded connection head, and a collection cavity is formed inside the oil pollution collection bottle. A lifting sealing plate is movably connected to the inside of the collection cavity, and a column is fixedly connected to the center of the bottom end surface of the collection cavity below the lifting sealing plate. A contact sensor is embedded at the top of the column, and there is a gap between the top end surface of the contact sensor and the bottom end surface of the lifting sealing plate. A plurality of spring seats are fixedly connected around the column and are arranged in an array, and a spring column is fixedly connected to the inside of the spring seat. The top of the spring column is fixedly connected to the bottom end surface of the lifting sealing plate.

[0015] As a further solution of the present invention: The other end of the first exhaust pipe is fixedly connected to an oil fume machine, and a first induced draft fan is fixedly connected above the oil fume machine and on the side surface of the first exhaust pipe. A second induced draft fan is fixedly connected to the position corresponding to the third exhaust pipe on the top end surface of one side of the second exhaust pipe.

[0016] A construction method for the smoke exhaust duct structure of a building, adopting a smoke exhaust duct structure of a building described in any one of the above, includes the following steps:

[0017] Step 1: Establish BIM models of the building, the first smoke exhaust duct, the second smoke exhaust duct, and the third smoke exhaust duct;

[0018] Step 2: Conduct separate and individual inspections on the BIM models of the first smoke exhaust duct, the second smoke exhaust duct, and the third smoke exhaust duct;

[0019] Step 3: Integrate the BIM models of the building and the smoke exhaust ducts, and conduct collision inspections;

[0020] Step 4: According to the established models, use relevant measuring instruments to conduct recheck measurements on the installation site of the smoke exhaust ducts to be installed, and use a BIM lofting robot to conduct lofting and positioning on the first smoke exhaust duct, the second smoke exhaust duct, and the third smoke exhaust duct;

[0021] Step 5: Produce the first smoke exhaust duct, the second smoke exhaust duct, and the third smoke exhaust duct of corresponding specifications according to the lofting and positioning results;

[0022] Step 6: Install the first smoke exhaust duct, the second smoke exhaust duct, and the third smoke exhaust duct on site and recheck the installation position dimensions.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] 1. Through the set T-shaped track and pipeline cleaning component, during use, the cleaning vehicle travels back and forth on the T-shaped track through the driving wheels. During the process, the cleaning vehicle scrapes off a large amount of oil stains attached to the inner wall of the smoke exhaust duct. The oil stains in the first smoke exhaust duct and the third smoke exhaust duct are pushed by the cleaning vehicle towards the second smoke exhaust duct, and the oil stains on the second smoke exhaust duct fall into the oil stain collection component through the through groove. Among them, in the second smoke exhaust duct, the gear traveling on the chain can improve the stability of the cleaning vehicle and prevent the cleaning vehicle from falling when traveling on the T-shaped track perpendicular to the ground. In addition, the setting of the first limiting wheel and the second limiting wheel can limit the positions of the T-shaped track and the T-shaped rail groove, ensure there is a gap between the two, and reduce the frictional resistance of the cleaning vehicle moving.

[0025] 2. Through the set oil stain collection component, when the pipeline cleaning component scrapes off the oil stains and they fall to the bottom end of the second smoke exhaust duct, the oil stains enter the collection cavity through the notch and the top opening of the oil stain collection bottle. When the oil stains in the collection cavity reach the preset value, the lifting sealing plate moves downward a certain distance under the action of the gravity of the oil stains. At this time, the spring column is compressed, and the spring seat improves the anti-offset ability of the spring seat. When the bottom end surface of the lifting sealing plate contacts the contact sensor, the contact sensor sends an oil full signal to the external control terminal, and the staff can come to clean the oil stains in the oil stain collection bottle in time, and then install the cleaned oil stain collection bottle again. Brief Description of the Drawings

[0026] Figure 1 It is a schematic structural diagram of a building smoke exhaust duct structure;

[0027] Figure 2 It is a schematic structural diagram of a pipeline cleaning component in a building smoke exhaust duct structure;

[0028] Figure 3 It is an internal view of a cleaning vehicle in a building smoke exhaust duct structure;

[0029] Figure 4 It is a schematic structural diagram of a driving wheel in a building smoke exhaust duct structure;

[0030] Figure 5 It is a view combining a T-shaped track and a chain in a building smoke exhaust duct structure;

[0031] Figure 6 It is a schematic structural diagram of an oil stain collection component in a building smoke exhaust duct structure.

[0032] Description of the reference numerals: 1, the first smoke exhaust duct; 2, the second smoke exhaust duct; 3, the third smoke exhaust duct; 4, the T-shaped track; 5, the pipeline cleaning component; 501, the cleaning vehicle; 502, the T-shaped rail groove; 503, the through groove; 504, the filter screen; 505, the shovel block; 506, the first limit wheel; 507, the second limit wheel; 508, the driving wheel; 5081, the wheel body; 5082, the gear; 6, the range hood; 7, the first induced draft fan; 8, the second induced draft fan; 9, the notch; 10, the oil stain collection component; 1001, the oil stain collection bottle; 1002, the collection cavity; 1003, the lifting sealing plate; 1004, the spring seat; 1005, the spring column; 1006, the column; 1007, the contact sensor; 11, the threaded connector; 12, the chain. Detailed Description of the Invention

[0033] The following further elaborates on Figure 1-2 this application in detail.

[0034] Please refer to Figures 1 to 6, in the embodiment of the present invention, a building smoke exhaust duct structure includes a first smoke exhaust duct 1, a second smoke exhaust duct 2, and a third smoke exhaust duct 3 with the same cross-section. One end of the first smoke exhaust duct 1 is connected to the bottom end of the second smoke exhaust duct 2, and the top end of the second smoke exhaust duct 2 is connected to one end of the third smoke exhaust duct 3. Inside the first smoke exhaust duct 1, the second smoke exhaust duct 2, and the third smoke exhaust duct 3, a T-shaped track 4 is fixedly connected, and a duct cleaning assembly 5 is provided on the T-shaped track 4. A notch 9 is opened at the bottom end of the second smoke exhaust duct 2, and a threaded connector 11 is fixedly connected to the bottom end of the notch 9. An oil stain collection assembly 10 is threadedly connected to the bottom end of the threaded connector 11. The present invention can reduce the oil stains adhering to the inner wall of the smoke exhaust duct, thereby reducing the growth of bacteria.

[0035] In this embodiment: The other end of the first smoke exhaust duct 1 is fixedly connected to an oil fume machine 6, and above the oil fume machine 6 and on the side of the first smoke exhaust duct 1, a first induced draft fan 7 is fixedly connected. At a position corresponding to the third smoke exhaust duct 3 on the top end of one side of the second smoke exhaust duct 2, a second induced draft fan 8 is fixedly connected. When the oil fume machine 6 operates, it sucks in oil fume and transports it into the first smoke exhaust duct 1, and the first induced draft fan 7 runs to accelerate the blowing of the oil fume towards the second smoke exhaust duct 2. After the oil fume enters the second smoke exhaust duct 2, it quickly enters the third smoke exhaust duct 3 under the blowing of the second induced draft fan 8, and finally is discharged from the building through the third smoke exhaust duct 3.

[0036] In this embodiment: The duct cleaning assembly 5 specifically includes: a cleaning vehicle 501. A T-shaped rail groove 502 for the T-shaped track 4 to pass through is opened on one side inside the cleaning vehicle 501, and a through groove 503 is opened on the other side inside the cleaning vehicle 501. A driving wheel 508 is movably connected to the middle position inside the cleaning vehicle 501, and the outer side of the driving wheel 508 contacts the T-shaped track 4. A limiting support member is provided between the T-shaped track 4 and the T-shaped rail groove 502. When in use, the cleaning vehicle 501 travels back and forth on the T-shaped track 4 through the driving wheel 508. During the process, the cleaning vehicle 501 scrapes off a large amount of oil stains adhering to the inner wall of the smoke exhaust duct. The oil stains in the first smoke exhaust duct 1 and the third smoke exhaust duct 3 are pushed by the cleaning vehicle 501 towards the second smoke exhaust duct 2, and the oil stains on the second smoke exhaust duct 2 fall into the oil stain collection assembly 10 through the through groove 503.

[0037] In this embodiment: Filter meshes 504 are fixedly connected to both ends of the through groove 503. The setting of the filter meshes 504 prevents impurities in the smoke exhaust duct from entering the through groove 503 and blocking the through groove 503.

[0038] In this embodiment: Shoveling blocks 505 are fixedly connected to the edges of both sides of the cleaning vehicle 501. The setting of the shoveling blocks 505 can improve the efficiency of the cleaning vehicle 501 in scraping off oil stains.

[0039] In this embodiment: The limit support member specifically includes a first limit wheel 506 and a second limit wheel 507. The number of the first limit wheels 506 is four, and the four first limit wheels 506 are pairwise embedded on both sides of the opening of the T-shaped rail groove 502 and can move and contact the T-shaped track 4. The number of the second limit wheels 507 is the same as that of the first limit wheels 506, and the four second limit wheels 507 are pairwise embedded on both sides of the side surface of the T-shaped rail groove 502 close to the opening and can move, and the second limit wheels 507 contact the T-shaped track 4. The arrangement of the first limit wheel 506 and the second limit wheel 507 can limit the positions of the T-shaped track 4 and the T-shaped rail groove 502, ensure a gap between the two, and reduce the frictional resistance of the cleaning vehicle 501 during movement.

[0040] In this embodiment: The drive wheel 508 specifically includes a wheel body 5081. Both side surfaces of the wheel body 5081 are fixedly connected with gears 5082, and the outer diameter of the gear 5082 is smaller than the outer diameter of the wheel body 5081. The wheel body 5081 can travel on the T-shaped track 4, while the gear 5082 can travel on the chain 12.

[0041] In this embodiment: The second exhaust pipe 2 is perpendicular to the horizontal plane, and two parallel chains 12 are fixedly connected to the T-shaped track 4 inside the second exhaust pipe 2. The chain 12 is matched with the gear 5082. The travel of the gear 5082 on the chain 12 can improve the stability of the cleaning vehicle 501 and prevent the cleaning vehicle 501 from falling when traveling on the T-shaped track 4 perpendicular to the ground.

[0042] In this embodiment: The oil pollution collection component 10 specifically includes: an oil pollution collection bottle 1001. The top of the oil pollution collection bottle 1001 is open and threadedly connected to a threaded connection head 11. A collection cavity 1002 is provided inside the oil pollution collection bottle 1001. A lifting sealing plate 1003 is movably connected inside the collection cavity 1002. At the center below the lifting sealing plate 1003 and on the bottom end surface of the collection cavity 1002, a column 1006 is fixedly connected. A contact sensor 1007 is embedded at the top of the column 1006, and there is a gap between the top end surface of the contact sensor 1007 and the bottom end surface of the lifting sealing plate 1003. A plurality of spring seats 1004 distributed in an array are fixedly connected around the column 1006, and a spring column 1005 is fixedly connected inside the spring seat 1004. The top of the spring column 1005 is fixedly connected to the bottom end surface of the lifting sealing plate 1003. Oil pollution enters the collection cavity 1002 through the notch 9 and the top opening of the oil pollution collection bottle 1001. When the oil pollution in the collection cavity 1002 reaches a preset value, the lifting sealing plate 1003 moves downward by a certain distance under the action of the gravity of the oil pollution. At this time, the spring column 1005 is compressed, and the spring seat 1004 improves the anti-offset ability of the spring seat 1004. When the bottom end surface of the lifting sealing plate 1003 contacts the contact sensor 1007, the contact sensor 1007 sends an oil full signal to the external control terminal, and the staff comes to clean the oil pollution in the oil pollution collection bottle 1001 in time, and then reinstalls the cleaned oil pollution collection bottle 1001.

[0043] The present invention also provides a construction method for a building smoke exhaust duct structure. Using a building smoke exhaust duct structure according to any one of the above, it includes the following steps:

[0044] Step 1: Establish BIM models of the house and the first smoke exhaust duct 1, the second smoke exhaust duct 2, and the third smoke exhaust duct 3. According to the BIM models of various smoke exhaust ducts, judge the load-bearing situation of the supports and hangers required for each smoke exhaust duct and the layout positions of the supports and hangers, and then design the structures of the supports and hangers according to the load-bearing situation and layout positions of the supports and hangers.

[0045] Step 2: Conduct separate inspections on the BIM models of the first smoke exhaust duct 1, the second smoke exhaust duct 2, and the third smoke exhaust duct 3 respectively.

[0046] Step 3: Integrate the BIM models of the house and the smoke exhaust ducts and conduct collision inspections until there are no collision points between the newly imported house model data and the BIM models of the smoke exhaust ducts.

[0047] Step 4: According to the established models, use relevant measuring instruments to conduct recheck measurements on the installation site of the smoke exhaust ducts to be installed, and use a BIM lofting robot to loft and position the first smoke exhaust duct 1, the second smoke exhaust duct 2, and the third smoke exhaust duct 3. Finally, correct the installation positions of the smoke exhaust ducts in the BIM model, and the correction range is ±5 cm.

[0048] Step Five: Produce the first exhaust pipe 1, the second exhaust pipe 2, and the third exhaust pipe 3 of corresponding specifications according to the lofting positioning results. The first exhaust pipe 1, the second exhaust pipe 2, and the third exhaust pipe 3 are processed with 1.5-mm-thick galvanized iron sheets. The cross-sectional dimensions of the first exhaust pipe 1, the second exhaust pipe 2, and the third exhaust pipe 3 are all 800 mm * 1000 mm.

[0049] Step Six: Install the first exhaust pipe 1, the second exhaust pipe 2, and the third exhaust pipe 3 on-site and recheck the installation position dimensions.

[0050] In this embodiment: The second exhaust pipe 2 is vertically installed as the main flue inside the building and passes through each floor. The first exhaust pipe 1 is used as a secondary flue to connect the range hoods 6 in each user's home. The third exhaust pipe 3 is used as an exhaust pipe parallel to the horizontal plane and is connected to the top of the second exhaust pipe 2. During installation, the second exhaust pipe 2 is installed first, followed by the first exhaust pipe 1, and finally the third exhaust pipe 3.

[0051] The working principle of the present invention is as follows: When in use, the range hood 6 operates to suck cooking fumes and convey them into the first exhaust pipe 1, and the first induced draft fan 7 runs to accelerate the blowing of the cooking fumes towards the second exhaust pipe 2. After the cooking fumes enter the second exhaust pipe 2, they quickly enter the third exhaust pipe 3 under the blowing of the second induced draft fan 8, and finally are discharged from the building through the third exhaust pipe 3. During this process, the cooking fumes can pass through the through slot 503 and pass through the cleaning vehicle 501. After long-term use, a large amount of oil stains adhere to the inner wall of the exhaust pipe. At this time, the cleaning vehicle 501 travels back and forth on the T-shaped track 4 through the drive wheels 508. During this process, the cleaning vehicle 501 scrapes off a large amount of oil stains adhering to the inner wall of the exhaust pipe. The oil stains in the first exhaust pipe 1 and the third exhaust pipe 3 are pushed by the cleaning vehicle 501 towards the second exhaust pipe 2, and the oil stains on the second exhaust pipe 2 fall into the oil stain collection assembly 10 through the through slot 503. Among them, in the second exhaust pipe 2, the gear 5082 traveling on the chain 12 can improve the stability of the cleaning vehicle 501 and prevent the cleaning vehicle 501 from falling when traveling on the T-shaped track 4 perpendicular to the ground. In addition, the setting of the first limit wheel 506 and the second limit wheel 507 can limit the positions of the T-shaped track 4 and the T-shaped rail groove 502, ensure that there is a gap between the two, and reduce the frictional resistance of the movement of the cleaning vehicle 501. Finally, the oil stains enter the collection cavity 1002 through the notch 9 and the top opening of the oil stain collection bottle 1001. When the oil stains in the collection cavity 1002 reach the preset value, the lifting sealing plate 1003 moves downward a certain distance under the action of the gravity of the oil stains. At this time, the spring column 1005 is compressed, and the spring seat 1004 improves the anti-offset ability of the spring seat 1004. When the bottom end surface of the lifting sealing plate 1003 contacts the contact sensor 1007, the contact sensor 1007 sends an oil full signal to the external control terminal, and the staff comes to clean the oil stains in the oil stain collection bottle 1001 in time, and then reinstalls the cleaned oil stain collection bottle 1001.

[0052] The above are all the preferred embodiments of this application. The protection scope of this application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A building smoke exhaust duct structure, characterized in that It includes a first smoke exhaust pipe (1), a second smoke exhaust pipe (2), and a third smoke exhaust pipe (3) with the same cross-section. One end of the first smoke exhaust pipe (1) is connected to the bottom end of the second smoke exhaust pipe (2), and the top end of the second smoke exhaust pipe (2) is connected to one end of the third smoke exhaust pipe (3). Inside the first smoke exhaust pipe (1), the second smoke exhaust pipe (2), and the third smoke exhaust pipe (3), there are fixedly connected T-shaped tracks (4), and on the T-shaped tracks (4), there are pipe cleaning components (5). At the bottom end of the second smoke exhaust pipe (2), there is a notch (9), and at the bottom end of the notch (9), there is a threaded connector (11) fixedly connected. At the bottom end of the threaded connector (11), there is a grease collection component (10) threadedly connected. The pipe cleaning component (5) specifically includes: a cleaning vehicle (501). Inside one side of the cleaning vehicle (501), there is a T-shaped rail groove (502) for the T-shaped track (4) to pass through, and on the other side inside the cleaning vehicle (501), there is a through groove (503). At the middle position inside the cleaning vehicle (501), there is a driving wheel (508) movably connected, and the outer side of the driving wheel (508) is in contact with the T-shaped track (4). Between the T-shaped track (4) and the T-shaped rail groove (502), there is a limiting support member. The driving wheel (508) specifically includes: a wheel body (5081). On both side surfaces of the wheel body (5081), there are fixedly connected gears (5082), and the outer diameter of the gears (5082) is smaller than the outer diameter of the wheel body (5081). The second smoke exhaust pipe (2) is perpendicular to the horizontal plane, and on the T-shaped track (4) inside the second smoke exhaust pipe (2), there are two juxtaposed chains (12) fixedly connected. The chains (12) are matched with the gears (5082).

2. The structure of a building smoke exhaust duct according to claim 1, characterized in that, At both ends of the through groove (503), there are filter meshes (504) fixedly connected.

3. The structure of a building smoke exhaust duct according to claim 1, characterized in that, On the edges of both side surfaces of the cleaning vehicle (501), there are shovel blocks (505) fixedly connected.

4. A building smoke exhaust duct structure according to claim 1, characterized in that, The limiting support member specifically includes: a first limiting wheel (506) and a second limiting wheel (507). The number of the first limiting wheels (506) is four, and two of the four first limiting wheels (506) are embedded on both sides of the opening of the T-shaped rail groove (502) and can move and are in contact with the T-shaped track (4). The number of the second limiting wheels (507) is the same as that of the first limiting wheels (506), and two of the four second limiting wheels (507) are embedded on both sides of the side surface of the T-shaped rail groove (502) close to the opening and can move, and the second limiting wheels (507) are in contact with the T-shaped track (4).

5. A building smoke exhaust duct structure according to claim 1, characterized in that, The oil pollution collection component (10) specifically includes: an oil pollution collection bottle (1001). The top of the oil pollution collection bottle (1001) is open and threadedly connected to a threaded connection head (11). A collection cavity (1002) is provided inside the oil pollution collection bottle (1001). A lifting sealing plate (1003) is movably connected inside the collection cavity (1002). A column (1006) is fixedly connected to the center of the bottom surface of the collection cavity (1002) below the lifting sealing plate (1003). A contact sensor (1007) is embedded at the top of the column (1006), and there is a gap between the top surface of the contact sensor (1007) and the bottom surface of the lifting sealing plate (1003). A plurality of spring seats (1004) distributed in an array are fixedly connected around the column (1006), and a spring column (1005) is fixedly connected inside the spring seat (1004). The top of the spring column (1005) is fixedly connected to the bottom surface of the lifting sealing plate (1003).

6. The structure of a building smoke exhaust duct according to claim 1, characterized in that, The other end of the first smoke exhaust pipe (1) is fixedly connected to a range hood (6). Above the range hood (6), a first air blower (7) is fixedly connected to the side of the first smoke exhaust pipe (1). A second air blower (8) is fixedly connected to the position corresponding to the third smoke exhaust pipe (3) at the top of one side of the second smoke exhaust pipe (2).

7. A construction method of a building smoke exhaust duct structure, characterized in that, Using a building smoke exhaust pipe structure according to any one of claims 1 - 6, comprising the following steps: Step 1: Establish a BIM model of the house and the first smoke exhaust pipe (1), the second smoke exhaust pipe (2), and the third smoke exhaust pipe (3). Step 2: Conduct separate and individual inspections on the BIM models of the first smoke exhaust pipe (1), the second smoke exhaust pipe (2), and the third smoke exhaust pipe (3). Step 3: Integrate the BIM models of the house and the smoke exhaust pipes and conduct collision inspections. Step 4: According to the established model, use relevant measuring instruments to conduct recheck measurements on the installation site of the smoke exhaust pipes to be installed, and use a BIM layout robot to conduct layout positioning on the first smoke exhaust pipe (1), the second smoke exhaust pipe (2), and the third smoke exhaust pipe (3). Step 5: Produce the first smoke exhaust pipe (1), the second smoke exhaust pipe (2), and the third smoke exhaust pipe (3) with corresponding specifications according to the layout positioning results. Step 6: Install the first smoke exhaust pipe (1), the second smoke exhaust pipe (2), and the third smoke exhaust pipe (3) on-site and recheck the installation position dimensions.

Images