Smoke exhaust pipeline for multi-story building
By designing multi-story building smoke exhaust pipes, including the reverse-reverse part and the diversion part, the problem of oil smoke odor is solved, and the independent upward and discharge of smoke is achieved, preventing reflux and odor flow, and improving exhaust efficiency.
Patent Information
- Application Number
- CN202421106189.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-21
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-05-21
Smart Images
Figure CN222256640U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of building smoke exhaust, in particular to a smoke exhaust pipe for a multi-story building. Background Art
[0002] In daily life, when people cook, cooking oil will produce fumes under the action of high temperature. These fumes contain acrolein, benzene, formaldehyde, croton, etc., which are all toxic substances and suspected carcinogens. If these fumes are inhaled for a long time, in addition to increasing the risk of lung cancer, they may also cause diabetes, heart disease, obesity and other problems, so it is necessary to remove kitchen fumes. In life, people mainly use range hoods to suck fumes into the range hood, and then discharge the sucked fumes into the exhaust pipe through the PV hose, and the fumes are discharged from the exhaust pipe through the principle of rising hot air.
[0003] Since the upper and lower floors of an apartment share a main exhaust channel, when the lower-floor owner is cooking, the fumes will rise along the main exhaust channel. If the upper-floor owner has not turned on the exhaust device, the fumes will flow into the upper-floor owner's house along the exhaust branch channel, causing fumes to cross-flame and bring trouble to the upper-floor owner. Therefore, a smoke exhaust duct for multi-story buildings is urgently needed to solve this problem. Utility Model Content
[0004] The utility model aims to provide a smoke exhaust duct for multi-story buildings to solve the above problems.
[0005] To achieve the above purpose, the utility model provides the following solutions:
[0006] A smoke exhaust duct for a multi-story building, comprising: a main air duct, the main air duct is connected to the exhaust ports of a plurality of house-entry air ducts, the house-entry air ducts are buried in the building, and the air inlets of the house-entry air ducts are used to be connected to the air outlets of the smoke exhaust facilities in the rooms;
[0007] The air inlet of the house air duct is provided with a non-return part;
[0008] The exhaust port of the house-entry air duct is provided with a flow guide portion.
[0009] Preferably, the non-return portion comprises a non-return valve, the non-return valve is fixedly connected to the air inlet, and the exhaust end of the non-return valve is connected to the interior of the house air duct.
[0010] Preferably, the guide part includes a guide plate, the guide plate is fixed in the exhaust port of the house air duct, a plurality of inclined guide strips are fixed on the guide plate, the plurality of guide strips are arranged at intervals, and the air outlet end of the guide strip is arranged higher than the air inlet end of the guide strip.
[0011] Preferably, the guide strip has an inclination angle of 30°.
[0012] Preferably, the diameter of the inlet air duct is 160 mm.
[0013] Preferably, the distance between the top end of the air inlet of the house air duct and the bottom end of the air outlet of the house air duct is 600 mm.
[0014] Preferably, the diameter of the main air duct is 340 mm to 440 mm.
[0015] Compared with the prior art, the utility model has the following advantages and technical effects:
[0016] When in use, each owner discharges the air from the range hood and the air inlet of their respective house air ducts, and the air is discharged from the air inlet into the main air duct. Since the house air ducts are independent of each other and under the condition of rising hot air, the air in the main air duct will flow from bottom to top and will not enter other house air ducts, preventing odor cross-talk. At the same time, the check part can also prevent the smoke in the house air duct from flowing back into the house. The guide part is used to guide the smoke discharged from the house air duct upward, which is beneficial to the upward exhaust of the main air duct. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor:
[0018] Figure 1 It is a schematic diagram of the structure of the utility model;
[0019] Figure 2 This is a schematic diagram of the structure of Embodiment 2 of the present utility model;
[0020] Figure 3 This is a schematic diagram of the structure of the oil fume filter of Example 2 of the utility model;
[0021] Figure 4 This is a cross-sectional view of the oil fume filter structure of Example 2 of the utility model;
[0022] Among them, 1. main air duct; 2. house air duct; 3. air inlet; 4. check valve; 5. guide plate; 6. oil fume filter; 601. mounting plate; 602. metal oil collecting ring; 603. rotating ring; 604. magnet; 605. connecting arm; 606. oil fume filter plate; 607. second rotating ring; 608. fan blades; 609. oil collecting trough; 610. convex ring; 611. fixing ring. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0024] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0025] Embodiment 1:
[0026] Reference Figure 1 This embodiment discloses a smoke exhaust duct for a multi-story building, comprising: a main air duct 1, the main air duct 1 is connected to the exhaust ports of a plurality of household air ducts 2, the household air ducts 2 are buried in the building, and the air inlet 3 of the household air duct 2 is used to be connected to the air outlet end of the smoke exhaust facility in the room;
[0027] The air inlet 3 of the house air duct 2 is provided with a non-return portion;
[0028] The exhaust port of the inlet air duct 2 is provided with a guide portion.
[0029] When in use, each owner discharges the range hood and the air inlet 3 of their respective house air ducts 2, and the air is discharged from the air inlet 3 into the main air duct 1. Since each house air duct 2 is independent of each other and under the condition of rising hot air, the air in the main air duct 1 will flow from bottom to top and will not enter other house air ducts 2, thereby preventing odor cross-talk. At the same time, the check portion can also prevent the smoke in the house air duct 2 from flowing back into the house. The guide portion is used to guide the smoke exhausted from the house air duct 2 upward, which is beneficial to the upward exhaust of the main air duct 1.
[0030] According to a further optimized solution, the non-return part includes a non-return valve 4 , which is fixed to the air inlet 3 , and the exhaust end of the non-return valve 4 is connected to the interior of the house air duct 2 .
[0031] The check valve 4 is fixedly connected to the air inlet 3 to prevent the smoke from flowing back in the house air duct 2.
[0032] According to a further optimization scheme, the guide part includes a guide plate 5, which is fixed in the exhaust port of the house air duct 2. A plurality of inclined guide strips are fixed on the guide plate 5. The plurality of guide strips are arranged at intervals, and the air outlet end of the guide strip is arranged higher than the air inlet end of the guide strip.
[0033] A plurality of obliquely arranged guide strips fixedly connected to the guide plate 5 guide the smoke to be discharged upward, which is consistent with the exhaust direction in the main air duct 1, thereby improving the exhaust efficiency of the main air duct 1.
[0034] The solution is further optimized, and the guide strip has an inclination angle of 30°.
[0035] To further optimize the solution, the diameter of the inlet air duct 2 is 160mm.
[0036] According to a further optimization scheme, the distance between the top of the air inlet 3 of the house air duct 2 and the bottom of the air outlet of the house air duct 2 is 600 mm.
[0037] To further optimize the solution, the diameter of the main air duct 1 is 340mm to 440mm.
[0038] Embodiment 2:
[0039] refer to Figures 2 to 4 The difference between this embodiment and embodiment 1 is that an oil fume filter 6 is provided between the air inlet 3 and the guide plate 5 , the oil fume filter 6 is fixedly connected to the house air duct 2 , and the oil fume filter 6 is located directly above the air inlet 3 .
[0040] The oil fume filter 6 includes a mounting plate 601 coaxially fixed to the house air duct 2, a through hole is provided in the center of the mounting plate 601, a metal oil collecting ring 602 is coaxially fixed to the mounting plate 601, an oil collecting groove 609 is coaxially provided at the bottom of the metal oil collecting ring 602, a convex ring 610 is provided above the oil collecting groove 609, the convex ring 610 is coaxially fixed to the inner side of the top of the metal oil collecting ring 602, the bottom ends of a plurality of inclined oil fume filter plates 606 are fixed to the inner wall of the convex ring 610, the bottom ends of the oil fume filter plates 606 are connected to the oil collecting groove 609, and a plurality of oil fume filter plates 606 surround the convex ring 610 are arranged at equal intervals in the circumferential direction, the top ends of several oil fume filter plates 606 are fixedly connected with the same fixed ring 611, the top of the fixed ring 611 is rotatably connected with the second rotating ring 607, the fan blades 608 are coaxially fixed inside the second rotating ring 607, the outside of the second rotating ring 607 is fixedly connected with a rotating ring 603 through several connecting arms 605, the rotating ring 603 is coaxially rotatably arranged on the top of the metal oil collecting ring 602, a gap is provided between the bottom of the rotating ring 603 and the top of the convex ring 610, and several magnets 604 are embedded in the rotating ring 603 at equal intervals in the circumferential direction, and the polarities of two adjacent magnets 604 are opposite.
[0041] During use, after the oil smoke is discharged from the air inlet 3, the smoke first contacts with each oil smoke filter plate 606, and the oil in the smoke is filtered by each oil smoke filter plate 606. This part of the oil will slide along the inclined oil smoke filter plate 606 into the oil collecting tank 609. When the smoke passes through, it will drive the fan blade 608 to drive the second rotating ring 607 to rotate, and drive the rotating ring 603 to rotate through the connecting arm 605, so that each magnet 604 on the rotating ring 603 rotates. The polarities of two adjacent magnets 604 are opposite. When each magnet 604 rotates, it will affect the convex ring 610, causing the convex ring 610 to heat up. The oil smoke filter plate 606 and the convex ring 610 are both made of metal. Under the effect of metal heat conduction, the oil can be prevented from solidifying at low temperature, so that it can drip into the oil collecting tank 609 more smoothly. After the oil content in the smoke is reduced, it passes through the guide plate 5 again, which can prevent the accumulation of oil sludge on the guide plate 5 and extend the service life of the guide plate 5.
[0042] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0043] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.
Claims
1. A smoke exhaust duct for a multi-storey building, characterized in that: include: A main air duct (1), the main air duct (1) being connected to the exhaust ports of a plurality of house air ducts (2), the house air ducts (2) being buried in a building, and the air inlets (3) of the house air ducts (2) being used to be connected to the air outlets of smoke exhaust facilities in the room; The air inlet (3) of the house air duct (2) is provided with a non-return portion; The exhaust port of the house-entry air duct (2) is provided with a flow guide portion.
2. The smoke exhaust duct for a multi-story building according to claim 1, characterized in that: The non-return portion comprises a non-return valve (4), the non-return valve (4) is fixedly connected to the air inlet (3), and the exhaust end of the non-return valve (4) is connected to the interior of the house air duct (2).
3. The smoke exhaust duct for a multi-story building according to claim 1, characterized in that: The guide portion comprises a guide plate (5), the guide plate (5) being fixedly connected to the exhaust port of the inlet air duct (2), a plurality of guide strips being fixedly connected to the guide plate (5), the plurality of guide strips being arranged at intervals, and the air outlet end of the guide strip being arranged higher than the air inlet end of the guide strip.
4. The smoke exhaust duct for a multi-story building according to claim 3, characterized in that: The guide strip has an inclination angle of 30°.
5. The smoke exhaust duct for a multi-story building according to claim 1, characterized in that: The diameter of the inlet air duct (2) is 160 mm.
6. The smoke exhaust duct for a multi-story building according to claim 1, characterized in that: The distance between the top end of the air inlet (3) of the house air duct (2) and the bottom end of the air outlet of the house air duct (2) is 600 mm.
7. The smoke exhaust duct for a multi-story building according to claim 1, characterized in that: The diameter of the main air duct (1) is 340 mm to 440 mm.