Discharge flue assembly unit, kitchen discharge flue and smoke discharge system
By setting up spiral flow diversion components in the smoke exhaust main pipe and separating the smoke exhaust main pipe into different spiral channels, the problem of oil smoke connection and smoke exhaust in the kitchen smoke exhaust system in multi-story buildings is solved, efficient smoke separation and flow are achieved, and the overall performance of the smoke exhaust system is improved.
Patent Information
- Application Number
- CN202510592196.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-08
- Publication Date
- 2025-07-01
AI Technical Summary
The existing kitchen smoke exhaust system has problems such as oil smoke connection, poor smoke exhaust and backflow in multi-story buildings, and the existing technology is difficult to optimize smoke exhaust efficiency and effectively isolate oil smoke interference between residents.
A spiral flow guide assembly is set up in the smoke exhaust main pipe, which separates the smoke exhaust main pipe into different spiral channels. The spiral channels are used to separate the smoke exhaust of residents on different levels, and the smoke exhaust flow speed is increased.
Through the design of the spiral channel, it can not only optimize the smoke exhaust efficiency, but also effectively isolate the oil smoke interference between residents, improve the height of household isolation, reduce the smoke exhaust pressure of the bottom-level users, and promote the smooth discharge of smoke.
Smart Images
Figure CN120231418A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of kitchen smoke exhaust and building construction, and in particular to a smoke exhaust duct assembly unit, a kitchen smoke exhaust duct and a smoke exhaust system. Background Art
[0002] As modern buildings develop towards multi-storey, mid-rise and high-rise residential buildings, kitchen exhaust systems face prominent problems such as oil smoke cross-contamination, poor exhaust and backflow. The traditional centralized flue system relies on the range hood to guide the oil smoke into the vertical exhaust duct, but because the height of the household isolation is usually less than the height of a single floor, oil smoke is prone to cross-contamination between adjacent households, especially for residents on the ground floor, due to insufficient exhaust pressure, low exhaust efficiency and even oil smoke backflow, which seriously damages living comfort.
[0003] In response to the above problems, the existing technology proposes two improvement plans: one is to design layered independent smoke exhaust ducts, which can reduce smoke cross-talk, but greatly increases the area occupied by the ducts, resulting in increased construction costs; the other is to divide a single duct into multiple small flues, which saves space but reduces the smoke exhaust efficiency due to the reduced cross-sectional area of the single duct.
[0004] This shows that current technology still lacks a solution that can both optimize smoke exhaust efficiency and effectively isolate oil smoke interference between residents. Summary of the invention
[0005] The object of the present invention is to provide a smoke exhaust duct assembly unit, a kitchen smoke exhaust duct and a smoke exhaust system to solve the problems existing in the above-mentioned prior art. By arranging a spiral guide component in the smoke exhaust main pipe, the space in the smoke exhaust main pipe is divided into different spiral channels, and residents on different floors can access different spiral channels. The spiral channels can not only separate the smoke exhaust of residents on different floors, but also increase the smoke exhaust flow speed, thereby optimizing the smoke exhaust efficiency and effectively isolating the interference of oil smoke between residents.
[0006] To achieve the above object, the present invention provides the following solutions:
[0007] The present invention provides a smoke exhaust duct assembly unit, comprising a smoke exhaust main pipe, a spiral guide component and at least one inlet pipe section, wherein the end of the smoke exhaust main pipe is provided with a first connection structure for connecting to another smoke exhaust main pipe; the spiral guide component is arranged inside the smoke exhaust main pipe, the end of the spiral guide component is provided with a second connection structure for connecting to another spiral guide component, and the spiral guide component divides the smoke exhaust main pipe into at least two spiral channels; the inlet pipe section is connected to the smoke exhaust main pipe, and the inlet pipe section is connected to one of the spiral channels.
[0008] In one embodiment, the spiral flow guiding assembly includes a single spiral flow guiding partition, and the spiral flow guiding partition divides the main exhaust pipe into two spiral channels.
[0009] In one embodiment, there is one inlet pipe section provided.
[0010] In one embodiment, the number of turns of the spiral flow guiding partition spiraling around its own axis from the inlet end of the main exhaust pipe to the outlet end of the main exhaust pipe is half a turn.
[0011] In one embodiment, the first connection structure includes a first pin and a first slot provided at both ends of the main exhaust pipe, and the first pin is used for plugging and connecting with the first slot of another main exhaust pipe; the second connection structure includes a second pin and a second slot provided on the spiral flow guiding partition, and the second pin is used for connecting with the second slot of another spiral flow guiding partition.
[0012] The present invention provides a kitchen exhaust duct, which includes at least two sets of exhaust duct assembly units as described above, and adjacent exhaust duct assembly units are connected through the first connection structure and the second connection structure.
[0013] In one embodiment, it further includes a clamp assembly, and the clamp assembly includes a clamp body and a connecting member. The clamp body is used for clamping on the outer diameter side of the end of the main exhaust pipe, and the connecting member is used for connecting the clamp body to a fixed object.
[0014] In one embodiment, it further includes a check valve, and the check valve is arranged on the inlet pipe section.
[0015] The present invention provides an exhaust system, which includes the kitchen exhaust duct as described above, and further includes an exhaust branch pipe. The inlet of the exhaust branch pipe is used for connecting to an oil fume machine, and the outlet of the exhaust branch pipe is connected to the inlet pipe section.
[0016] In one embodiment, the spiral channels of odd floors are interconnected as a first exhaust duct, and the spiral channels of even floors are interconnected as a second exhaust duct. The oil fume machines on odd floors are connected to the first exhaust duct, and the oil fume machines on even floors are connected to the second exhaust duct.
[0017] The present invention has achieved the following technical effects compared with the prior art:
[0018] The present invention arranges a spiral guide component in the smoke exhaust main pipe, so that the space in the smoke exhaust main pipe is divided into different spiral channels, and the adjacent smoke exhaust main pipes are connected by a first connecting structure, and the adjacent spiral guide components are connected by a second connecting structure, so that the spiral channels in different smoke exhaust main pipes are connected, and residents on different floors can access different spiral channels through inlet pipe sections. The spiral channels can not only separate the smoke exhaust of residents on different floors, but also increase the smoke exhaust flow speed, thereby optimizing the smoke exhaust efficiency and effectively isolating the oil fume interference between residents, thereby increasing the height of household isolation, effectively reducing the smoke exhaust pressure of users on the ground floor, and promoting the smooth exhaust of smoke. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0020] Figure 1 It is a schematic diagram of the overall structure of the smoke exhaust system in an embodiment of the present invention;
[0021] Figure 2 for Figure 1 Sectional view of AA in the middle;
[0022] Figure 3 for Figure 1 Cross-sectional view of the middle BB;
[0023] Figure 4 is a schematic cross-sectional structure diagram of a smoke exhaust duct assembly unit in an embodiment of the present invention;
[0024] Figure 5 for Figure 4 A magnified schematic diagram of area a in the middle;
[0025] Figure 6 for Figure 4 A magnified schematic diagram of area b;
[0026] Figure 7 This is a schematic diagram of a first connection structure in an embodiment of the present invention;
[0027] Figure 8 This is a schematic diagram of a second connection structure in an embodiment of the present invention;
[0028] Among them, 1. Smoke exhaust duct assembly unit; 2. Range hood; 3. Sealant; 4. Clamp assembly; 5. Check valve; 6. Smoke exhaust branch pipe;
[0029] 11. Main exhaust pipe; 12. Spiral flow guide partition; 13. Inlet pipe section; 14. First exhaust duct; 15. Second exhaust duct;
[0030] 111. First bolt; 112. First slot;
[0031] 121. Second bolt; 122. Second slot. Detailed implementation manners
[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.
[0033] The object of the present invention is to provide an exhaust duct assembly unit, a kitchen exhaust duct and an exhaust system to solve the problems existing in the prior art. By arranging a spiral flow guide component in the main exhaust pipe, the space in the main exhaust pipe is divided into different spiral channels, and households on different floors can access different spiral channels. The spiral channels can not only separate the exhaust of households on different floors, but also increase the exhaust flow velocity, so as to optimize the exhaust efficiency and effectively isolate the oil fume interference between households.
[0034] To make the above objects, features and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific implementation manners.
[0035] As Figures 1 to 8As shown in the figure, the present invention provides a smoke exhaust duct assembly unit, which includes a main smoke exhaust duct 11, a spiral flow guiding assembly, and at least one inlet pipe section 13. A first connection structure for connecting another main smoke exhaust duct 11 is provided at the end of the main smoke exhaust duct 11. Adjacent main smoke exhaust ducts 11 are connected through the first connection structure to prevent smoke leakage. The first connection structure can adopt a flange connection structure, a structure in which a convex block is inserted into a groove in a mating manner, etc., and a sealing structure such as a sealing ring can also be provided. The spiral flow guiding assembly is arranged inside the main smoke exhaust duct 11. Through the spiral flow guiding assembly, the main smoke exhaust duct 11 can be divided into at least two spiral channels, and through the sealing connection between the spiral flow guiding assembly and the inner wall surface of the main smoke exhaust duct 11, it is ensured that the separated spiral channels are not connected to each other. For example, when the spiral flow guiding assembly includes a single spiral flow guiding partition 12, it can be divided into two spiral channels, and when it includes two spiral flow guiding partitions 12, it can be divided into four spiral channels. A second connection structure for connecting another spiral flow guiding assembly is provided at the end of the spiral flow guiding assembly. Adjacent spiral flow guiding assemblies are connected through the second connection structure to prevent smoke from entering another spiral channel from one spiral channel and ensure the separation effect of the spiral flow guiding assembly. The second connection structure can adopt a flange connection structure, a structure in which a convex block is inserted into a groove in a mating manner, etc., and a sealing structure such as a sealing ring can also be provided. The inlet pipe section 13 is connected to the main smoke exhaust duct 11, and the inlet pipe section 13 communicates with one of the spiral channels. Each spiral channel can communicate with more than two inlet pipe sections 13, and each inlet pipe section 13 can be connected to the smoke exhaust devices of different users; each spiral channel can also communicate with a single inlet pipe section 13, and the single inlet pipe section 13 communicates with the smoke exhaust device of a single user, or the single inlet pipe section 13 is provided with more than two branch pipelines to connect different users or different smoke exhaust devices.
[0036] In the present invention, by arranging a spiral flow guiding assembly inside the main smoke exhaust duct 11, the space inside the main smoke exhaust duct 11 is divided into different spiral channels. Adjacent main smoke exhaust ducts 11 are connected by the first connection structure, and adjacent spiral flow guiding assemblies are connected by the second connection structure, so that the spiral channels in different main smoke exhaust ducts 11 are connected. Residents on different floors can access different spiral channels through the inlet pipe section 13. The design of the spiral channel can use the spiral shape to change the direction of the smoke airflow, so that the airflow flows along the spiral path of the spiral channel, thereby improving the smoke flow velocity and the smoke exhaust efficiency. In addition, this structure can reduce the friction between the inner wall of the main smoke exhaust duct 11 and the airflow, effectively avoid the accumulation of substances such as lampblack in the pipeline, and thus reduce the risk of blockage. Therefore, the use of spiral channels can not only separate the smoke exhaust of residents on different floors, but also improve the smoke exhaust flow velocity, thereby optimizing the smoke exhaust efficiency and effectively isolating the lampblack interference between residents.
[0037] In one embodiment, as Figures 1 to 4As shown, the main exhaust pipe 11 is a circular pipe, and its transverse section is circular. Thus, after a spiral flow guiding assembly is arranged in the main exhaust pipe 11, under the guiding action of the spiral flow guiding assembly, the flue gas spirally rises in the main exhaust pipe 11. And there are no redundant edges and corners inside the circular main exhaust pipe 11, which can reduce the obstruction to the spiral flow of the flue gas, ensure the smooth rise of the flue gas, and thus improve the exhaust efficiency.
[0038] In one embodiment, as Figure 4 shown, the inlet pipe section 13 is located at the middle position on one side of the main exhaust pipe 11 and is perpendicular to the main exhaust pipe 11. The main exhaust pipe 11 and the inlet pipe section 13 are integrally connected through a tee pipe structure. The materials of the main exhaust pipe 11 and the inlet pipe section 13 can be metal materials or non-metal materials. Among them, the metal materials can be aluminum alloy, galvanized steel sheet, stainless steel, etc.; the non-metal materials can be PVC, fiberglass reinforced plastic (FRP), etc.
[0039] In one embodiment, as Figures 1 to 4 shown, the spiral flow guiding assembly includes a single spiral guiding partition 12. The spiral guiding partition 12 extends from the inlet end to the outlet end of the main exhaust pipe 11. The main exhaust pipe 11 is divided into two spiral channels by the spiral guiding partition 12, and the two spiral guiding partitions 12 are not connected to each other. In this way, it can be improved under the conventional flue size, and the flow area of each spiral channel is not too small, which can not only separate the exhaust from different positions, but also not affect the exhaust speed.
[0040] In one embodiment, the height of the spiral guiding partition 12 is the same as the height of the main exhaust pipe 11, and the width is matched with the diameter of the main exhaust pipe 11. During the connection process of the spiral guiding partition 12 and the main exhaust pipe 11, both sides of the spiral guiding partition 12 are tightly connected to the inner wall of the main exhaust pipe 11, and the upper and lower ends are respectively aligned with the upper and lower ends of the main exhaust pipe 11, and the surface of the spiral guiding partition 12 faces the outlet direction of the inlet pipe section 13. The above connection method can be welding connection (only when both the spiral guiding partition 12 and the main exhaust pipe 11 are made of metal materials) or bonding connection (by applying PVC adhesive or polyurethane glue (PU glue) to bond and fix both sides of the spiral guiding partition 12 to the inner wall of the main exhaust pipe 11).
[0041] In one embodiment, as Figures 1 to 4As shown, the number of turns of the spiral flow guiding partition 12 from the inlet end to the outlet end of the main exhaust pipe 11 around its own axis is half a turn, that is, the angle of spiral around its own axis is 180° (i.e., the upper and lower end faces face the same direction). In this way, after two sets of exhaust duct assembly units 1 are connected, the spiral flow guiding partition 12 inside the main exhaust pipe 11 completes a full turn of spiral. At this time, the spiral channels connected by different inlet pipe sections 13 on the two main exhaust pipes 11 are not connected; when more exhaust duct assembly units 1 are connected, the spiral channels connected by the inlet pipe sections 13 of the odd-numbered main exhaust pipes 11 will be connected to each other, and the spiral channels connected by the inlet pipe sections 13 of the even-numbered main exhaust pipes 11 will be connected to each other, thereby forming the isolation of the odd-numbered and even-numbered flues. In this example, the spiral flow guiding partition 12 is designed to spiral 180 degrees around its own axis, and the spiral flow guiding partition 12 is tightly connected to the main exhaust pipe 11 at a fixed angle, direction, and position. This design not only ensures that the entire centralized exhaust duct is spliced by the exhaust duct assembly units 1 of the same structural type and specification, but also ensures that the exhaust of odd-numbered and even-numbered households smoothly enters the corresponding channels respectively, and at the same time realizes the vertical docking of all inlet pipe sections 13.
[0042] In one embodiment, as Figures 1 to 4 shown, there is one inlet pipe section 13, that is, each main exhaust pipe 11 is connected with one inlet pipe section 13. Thus, the amount of flue gas entering a single spiral channel is limited, and it will not cause congestion of the flue gas in the spiral channel, which is more suitable for the transformation of conventional user flues.
[0043] In one embodiment, as Figures 5 to 8As shown in the figure, the first connection structure includes a first pin 111 and a first slot 112 provided at both ends of the main exhaust pipe 11. The shape of the first pin 111 matches that of the first slot 112. For example, if the first pin 111 is circumferentially provided at the inlet end of the main exhaust pipe 11, then the first slot 112 is circumferentially provided at the outlet end of the main exhaust pipe 11. The width of the first pin 111 is slightly smaller than the width of the first slot 112, and after adding sealant 3, a sealed connection between the first pin 111 and the first slot 112 can be achieved; alternatively, the first pin 111 is provided at the outlet end, and the first slot 112 is provided at the inlet end, with the rest remaining unchanged. The first pin 111 is used for plugging and connecting with the first slot 112 of another main exhaust pipe 11. After the first pin 111 and the first slot 112 are connected, a sealed connection between adjacent main exhaust pipes 11 is achieved. The second connection structure includes a second pin 121 and a second slot 122 provided on the spiral flow guide partition 12. The shape of the second pin 121 matches that of the second slot 122. For example, if the second pin 121 is provided along the end face trajectory (such as a straight line) of the spiral flow guide partition 12 at one end of the spiral flow guide partition 12, then the second slot 122 is provided along the same end face trajectory at the other end of the spiral flow guide partition 12. The width of the second pin 121 is slightly smaller than the width of the second slot 122, and after adding sealant 3, a sealed connection between the second pin 121 and the second slot 122 can be achieved. The second pin 121 is used for connecting with the second slot 122 of another spiral flow guide partition 12. After the second pin 121 and the second slot 122 are connected, a sealed connection between adjacent spiral flow guide partitions 12 is achieved.
[0044] As Figures 1 to 8 shown, the present invention provides a kitchen exhaust duct, which includes at least two sets of exhaust duct assembly units 1 as described above. Adjacent exhaust duct assembly units 1 are connected through the first connection structure and the second connection structure to form a centralized exhaust duct. The centralized exhaust duct can be connected to households on different floors through the inlet pipe section 13 to meet the exhaust requirements of households on different floors. Due to the setting of the spiral flow guide component inside the main exhaust pipe 11, the flue gas of households on different floors can be introduced into non-connected spiral channels (for example, the flue gas of odd floors enters the spiral channels of odd floors, and the flue gas of even floors enters the spiral channels of even floors). The spiral channels can not only separate the exhaust of households on different floors, but also increase the exhaust flow velocity, thereby optimizing the exhaust efficiency and effectively isolating the oil fume interference between households.
[0045] In an embodiment, as Figure 1 shown, the height of the exhaust duct assembly unit 1 is equal to the storey height of the residential building, and the number of exhaust duct assembly units 1 is equal to the total number of floors of the residence. A plurality of exhaust duct assembly units 1 are sequentially and hermetically plugged and connected to form a centralized exhaust duct.
[0046] In one embodiment, for the flue gas traction device at the top of the centralized smoke exhaust duct of a multi-story (4 - 6 story) residential building, in addition to using a smoke exhaust fan (not shown in the drawings) for mechanical ventilation and smoke exhaust, natural ventilation and smoke exhaust can also be achieved through a power-free wind cap (not shown in the drawings).
[0047] In one embodiment, as Figure 1 and Figure 3 shown, it further includes a clamp assembly 4. The clamp assembly 4 includes a clamp body and a connecting member. The clamp body adopts a C-shaped structure. After the two-piece clamp body is buckled, it is locked by bolts (for example, two groups on each side, a total of four groups of bolts). The clamp body is clamped on the outer diameter side of the end of the main smoke exhaust pipe 11, so that adjacent main smoke exhaust pipes 11 are tightly connected, further reducing air leakage at the joint, ensuring the sealing performance of the main smoke exhaust pipe 11, and effectively preventing flue gas leakage. The width of the clamp body (in the axial direction of the main smoke exhaust pipe 11) can cover adjacent main smoke exhaust pipes 11, and a buffer pad can be arranged on the inner diameter side of the clamp body to protect the main smoke exhaust pipe 11 during fastening. The clamp body is usually made of stainless steel or galvanized steel, and its specification size is adapted to the diameter of the main smoke exhaust pipe 11. The buffer pad plays a role of buffering and sealing during connection and is usually made of rubber or polytetrafluoroethylene. One end of the connecting member is connected to the clamp body, and the other end of the connecting member is used to be connected to a fixed object (for example, connected to the facade wall through bolts) to fix the smoke exhaust duct assembly unit 1. The clamp assembly 4 can be arranged at the connection position of each adjacent main smoke exhaust pipe 11 to ensure the stability of the entire centralized flue.
[0048] As can be seen from the above, the kitchen smoke exhaust duct of the present invention adopts an assembled design. Through the plug-in connection between the smoke exhaust duct assembly units 1 and the fixation of the clamp assembly 4, the free splicing and convenient installation of the kitchen smoke exhaust duct are realized, improving the installation efficiency of the kitchen smoke exhaust duct and ensuring the sealing and stability of the system; at the same time, it is easy to disassemble and can be cleaned section by section, which can solve the problems of oil stain accumulation, wall corrosion, and difficulty in cleaning after long-term use of traditional flue gas pipes. In addition, the circular structure and assembled design of the centralized smoke exhaust duct can provide a neater and more concise appearance, enhancing the overall visual effect of the building; and because the installation is simple, it can reduce human errors and improve safety. Moreover, the unitized and assembled design of the centralized smoke exhaust duct makes the later inspection, cleaning, maintenance, or replacement work more convenient, and even local replacement or repair can be carried out, avoiding large-scale disassembly work and the shutdown of the entire smoke exhaust system.
[0049] In one embodiment, as Figure 1 and Figure 4As shown, it also includes a check valve 5, which is arranged on the inlet pipe section 13 and has the function of fire prevention and backflow prevention. The check valve 5 can realize the one-way flow of smoke, that is, the smoke can only flow from the user through the inlet pipe section 13 to the smoke exhaust pipe 11, and the smoke can be prevented from flowing back to the user from the smoke exhaust pipe 11.
[0050] In one embodiment, the check valve 5 may be of a double-plate type or a tilting disc type, and the valve plate thereof is made of ABS plastic (a terpolymer of acrylonitrile (A), butadiene (B), and styrene (S)).
[0051] like Figure 1 As shown, the present invention provides a smoke exhaust system, including the kitchen smoke exhaust duct as described above, and also including a smoke exhaust branch pipe 6, the inlet of the smoke exhaust branch pipe 6 is used to be connected to the range hood 2, and the outlet of the smoke exhaust branch pipe 6 is connected to the inlet pipe section 13. The range hood 2 draws the smoke generated by the kitchen into the smoke exhaust branch pipe 6, and the smoke enters the smoke exhaust main pipe 11 along the smoke exhaust branch pipe 6 through the inlet pipe section 13, and then flows upward in the spiral channel in the smoke exhaust main pipe 11, and finally discharged from the centralized smoke duct. The technical solution of the present invention not only avoids the mutual influence of smoke exhaust between upper and lower households, but also increases the isolation height of each household, effectively reduces the smoke exhaust pressure of the bottom users, and promotes the smooth exhaust of smoke.
[0052] In one embodiment, the smoke exhaust branch pipe 6 is an aluminum foil smoke pipe with a bending angle of ≤90°. The connection diameter of the smoke exhaust branch pipe 6 matches the inlet pipe section 13 and can be connected by a socket connection or a flange connection.
[0053] In one embodiment, if Figures 1 to 3 As shown, the spiral channels of the odd-numbered layers are interconnected to form the first smoke exhaust duct 14, and the spiral channels of the even-numbered layers are interconnected to form the second smoke exhaust duct 15, and the first smoke exhaust duct 14 and the second smoke exhaust duct 15 are not interconnected. The range hoods 2 of the odd-numbered layers are connected to the first smoke exhaust duct 14, and the range hoods 2 of the even-numbered layers are connected to the second smoke exhaust duct 15, so that the smoke discharged by the range hoods 2 of the odd-numbered layers and the range hoods 2 of the even-numbered layers do not affect each other and are discharged independently, which significantly reduces the smoke interference between adjacent layers.
[0054] In addition, the smoke exhaust system of the present invention not only effectively realizes the smoke exhaust diversion of the residents on the odd and even floors, but also ensures that the inlet pipe sections 13 of each floor are arranged along the same vertical axis, which greatly reduces the difficulty of remodeling the smoke exhaust duct of the traditional residential kitchen. In addition, the design of the spiral guide baffle 12 in the smoke exhaust main pipe 11 not only avoids the mutual influence of the smoke exhaust of the upper and lower residents, improves the smoothness of smoke exhaust, but also simplifies the pipe connection and saves the installation space, which is suitable for vertical centralized smoke exhaust of multi-story or (medium) high-rise residential buildings.
[0055] In one embodiment, a smoke exhaust fan (not shown in the drawings) is provided at the top of the centralized smoke exhaust duct, and the smoke exhaust fan is used to provide power for exhausting the flue gas in the first smoke exhaust duct 14 and the second smoke exhaust duct 15 at the same time.
[0056] In one embodiment, a specific application example of the smoke exhaust system provided by the present invention is as follows:
[0057] Before assembly and installation, select a smoke exhaust duct assembly unit 1 with a specification size matching the floor height of the target residence and a quantity equal to the total number of floors of the target residence, and equip it with a corresponding quantity and specification of clamp assemblies 4. The specific specifications of the smoke exhaust duct assembly unit 1 and the inlet pipe section 13 are designed and manufactured according to the current residential project construction specifications, the kitchen smoke exhaust duct standards or the relevant regulations in the atlas. In this example, the height of the smoke exhaust duct assembly unit 1 is 2.8 m to 3.3 m; the diameter of the main smoke exhaust pipe 11 is 0.55 m to 0.68 m; the diameter of the inlet pipe section 13 is 0.15 m to 0.20 m.
[0058] During the assembly and installation process, each smoke exhaust duct assembly unit 1 on the outdoor side of the residence is connected one by one in sequence from the bottom floor to the top floor of the target residence by means of sealed plugging. Specifically, sealed plugging refers to the process of docking and connecting the first slot 112 and the second slot 122 on the lower end face of the upper smoke exhaust duct assembly unit 1 with the first plug 111 and the second plug 121 coated with sealant 3 on the upper end face of the lower main smoke exhaust pipe 11. The connection points between the smoke exhaust duct assembly units 1 and between the centralized smoke exhaust duct and the residential vertical wall after connection are all fixed by the clamp assemblies 4 to ensure stable connection. The distance between the centralized smoke exhaust duct and the residential vertical wall should ensure that the inlet pipe section 13 can be effectively inserted into the reserved air duct in the vertical wall. A smoke exhaust fan (not shown in the drawings) can be installed at the top of the centralized smoke exhaust duct to provide power for the suction and exhaust of the flue gas in the duct. In the kitchens of each floor of the residence, a check valve 5 and a smoke exhaust branch pipe 6 matching the diameter of the inlet pipe section 13 are installed, and the smoke exhaust branch pipe 6 is connected to the range hood 2 of the corresponding floor household.
[0059] During the actual smoke exhaust operation process, the cooking fumes generated in the kitchens of each floor household are introduced into the smoke exhaust branch pipe 6 through the range hood 2, and then are collected into the centralized smoke exhaust duct through the smoke exhaust branch pipe 6. Among them, the fumes of the odd - numbered floor households are uniformly discharged into the first smoke exhaust duct 14, and the fumes of the even - numbered floor households are discharged into the second smoke exhaust duct 15. The flue gas entering the first smoke exhaust duct 14 and the second smoke exhaust duct 15 is discharged together from the high altitude of the residential roof under the suction of the top smoke exhaust fan (not shown in the drawings) through their respective channels.
[0060] In the present invention, specific examples are used to illustrate the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention; at the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present invention.
Claims
1. A smoke exhaust duct assembly unit, characterized in that: include: A smoke exhaust main pipe, wherein an end of the smoke exhaust main pipe is provided with a first connecting structure for connecting to another smoke exhaust main pipe; A spiral flow guide component, wherein the spiral flow guide component is arranged inside the smoke exhaust main pipe, and a second connection structure for connecting another spiral flow guide component is arranged at the end of the spiral flow guide component, and the spiral flow guide component divides the smoke exhaust main pipe into at least two spiral channels; and at least one inlet pipe section, wherein the inlet pipe section is connected to the smoke exhaust main pipe and communicates with one of the spiral channels.
2. The smoke exhaust duct assembly unit according to claim 1, characterized in that: The spiral flow guide component includes a single spiral flow guide baffle, and the spiral flow guide baffle divides the smoke exhaust main pipe into two spiral channels.
3. The smoke exhaust duct assembly unit according to claim 2, characterized in that: The inlet pipe section is provided with one.
4. The smoke exhaust duct assembly unit according to claim 2, characterized in that: The spiral guide baffle spirals around its own axis from the inlet end of the smoke exhaust main pipe to the outlet end of the smoke exhaust main pipe for half a turn.
5. The smoke exhaust duct assembly unit according to claim 4, characterized in that: The first connecting structure includes a first pin and a first slot arranged at both ends of the smoke exhaust main pipe, and the first pin is used to be plugged and connected with the first slot of another smoke exhaust main pipe; the second connecting structure includes a second pin and a second slot arranged on the spiral guide baffle, and the second pin is used to be connected with the second slot of another spiral guide baffle.
6. A kitchen smoke exhaust duct, characterized in that: It comprises at least two groups of smoke exhaust duct assembly units according to any one of claims 1 to 5, and adjacent smoke exhaust duct assembly units are connected through the first connection structure and the second connection structure.
7. The kitchen smoke exhaust duct according to claim 6, characterized in that: It also includes a clamp assembly, which includes a clamp body and a connector. The clamp body is used to be clamped on the outer diameter side of the end of the smoke exhaust pipe, and the connector is used to connect the clamp body to a fixed object.
8. The kitchen smoke exhaust duct according to claim 6, characterized in that: It also includes a check valve, which is arranged on the inlet pipe section.
9. A smoke exhaust system, characterized in that: It comprises the kitchen smoke exhaust duct as described in any one of claims 6 to 8, and also comprises a smoke exhaust branch pipe, the inlet of the smoke exhaust branch pipe is used to be connected to the range hood, and the outlet of the smoke exhaust branch pipe is connected to the inlet pipe section.
10. The smoke exhaust system according to claim 9, characterized in that: The spiral channels on the odd-numbered layers are interconnected to form a first smoke exhaust duct, the spiral channels on the even-numbered layers are interconnected to form a second smoke exhaust duct, the range hoods on the odd-numbered layers are connected to the first smoke exhaust duct, and the range hoods on the even-numbered layers are connected to the second smoke exhaust duct.