Novel composite exhaust pipe structure

Abstract

The utility model relates to the technical field of exhaust pipes, and discloses a novel composite exhaust pipe structure which comprises an exhaust pipe, an air inlet is formed in the bottom of the exhaust pipe, an air outlet is formed in the top of the exhaust pipe, an insertion groove is formed in the exhaust pipe, a filter screen is arranged on the insertion groove, and the filter screen is arranged on the insertion groove. A collecting tank is arranged on one side of the outer wall of the exhaust pipe in a communicating mode, a cleaning part is arranged in the exhaust pipe and comprises a first bearing fixedly installed on the inner wall of the exhaust pipe, a lead screw is fixedly installed on the inner wall of the first bearing, and a motor is fixedly installed at the extending end of the lead screw; the nanometer aerogel heat insulation felt is arranged on the inner wall of the exhaust pipe and installed on the inner wall of the exhaust pipe through the rivets, and therefore the exhaust pipe has the excellent characteristics of being good in flexibility, low in heat conductivity coefficient, wide in applicable temperature range, fireproof, waterproof, free of aging, capable of adsorbing, insulating sound, reducing noise, long in service life, free of powder falling, free of pungent smell at the high temperature and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of exhaust pipes, in particular to a novel composite exhaust pipe structure. Background Art

[0002] Fire-fighting smoke exhaust systems are widely used in office buildings, hotels, restaurants, theaters, shopping malls, hospitals, underground parking lots and other places where smoke exhaust is required.

[0003] The internal reinforcement of air ducts is an issue that must be considered during the production process of air ducts. The wall of air ducts is relatively thinner than that of water pipes, and rectangular air ducts are the most common. In terms of geometric shape, when the material is the same, the structural strength of the rectangular cross-section is more unstable than that of the circular and triangular cross-sections. The main purpose of internal reinforcement is to stabilize the pipeline structure and prevent noise from being generated due to intermittent deformation during operation.

[0004] At present, the existing air ducts used for smoke exhaust are mostly made of steel plates or galvanized steel plates, and such equipment itself is not treated with fire protection, so it does not have fire protection function. A large amount of scientific research data and fire cases at home and abroad show that air ducts without fire protection are at risk of collapse, deformation, and destruction during fire, and damage to the equipment will cause the spread of fire and smoke, and the directly discharged air often has a large dust content and cannot be processed. Therefore, based on the above problems, a new composite exhaust duct structure is introduced. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the shortcomings of the prior art, the utility model provides a novel composite exhaust duct structure. The advantage is that a nano-aerogel insulation felt is arranged on the inner wall of the exhaust duct, and the nano-aerogel insulation felt is installed on the inner wall of the exhaust duct by rivets, so it has excellent characteristics such as good flexibility, low thermal conductivity, wide applicable temperature range, A fireproof, waterproof, no aging, adsorption, sound insulation and noise reduction, long service life, no powdering, and no irritating odor at high temperature.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a novel composite exhaust duct structure, comprising an exhaust duct, an air inlet is provided at the bottom of the exhaust duct, an air outlet is provided at the top of the exhaust duct, a slot is provided inside the exhaust duct, a filter is provided on the slot, a collecting tank is provided on one side of the outer wall of the exhaust duct, a cleaning part is provided inside the exhaust duct, the cleaning part comprises a bearing 1 fixedly mounted on the inner wall of the exhaust duct, a screw rod is fixedly mounted on the inner wall of the bearing 1, and a motor is fixedly mounted on the extending end of the screw rod; a nano aerogel insulation felt is provided on the inner wall of the exhaust duct, and the nano aerogel insulation felt is mounted on the inner wall of the exhaust duct by rivets.

[0009] Preferably, the thickness of the nano aerogel insulation felt is set at mm, and the number of rivets is several groups that are symmetrically arranged at equal intervals.

[0010] Preferably, the outer wall of the screw rod is threadedly connected with a threaded slider, and the other end of the threaded slider is slidably connected to the outer wall of the limiting rod.

[0011] Preferably, a brush plate is installed on the outer wall of the threaded slider, and the brush surface of the brush plate is meshed with the surface of the filter.

[0012] Preferably, a box door is opened on the outer wall of the collecting tank, and there are two groups of collecting tanks which are symmetrically installed at the two ends of the outer wall of the exhaust pipe.

[0013] Preferably, the exhaust pipe is protected from inside to outside by galvanized iron sheet and glass magnesium plate, and the thickness of the glass magnesium plate is set to 14 mm.

[0014] Preferably, the inner surface of the nano aerogel insulation felt is a thermal insulation layer, which can be one of polyurethane foam material, polystyrene foam material, phenolic foam material, extruded foam material, and glass fiber insulation material, and the inner wall thickness of the exhaust duct is less than 14 mm.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a novel composite exhaust duct structure, which has the following beneficial effects:

[0017] 1. The structure of the novel composite exhaust duct is provided with nano aerogel insulation felt on the inner wall of the exhaust duct, and the nano aerogel insulation felt is installed on the inner wall of the exhaust duct by rivets. Therefore, it has the excellent characteristics of good flexibility, low thermal conductivity, wide applicable temperature range, A fireproof, waterproof, no aging, adsorption, sound insulation and noise reduction, long service life, no powdering, and no irritating odor at high temperature.

[0018] 2. The structure of the novel composite exhaust duct is that a bearing is installed in the exhaust duct, a screw is installed on the inner wall of the bearing, and a motor is installed on the extended end of the screw. The motor drives the screw to rotate, thereby driving the threaded slider on the outer wall of the screw to work and then driving the brush plate to brush the filtered dust on the filter screen into the collection tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the main cross-sectional structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the bottom structure of the utility model;

[0023] Figure 4 It is a schematic diagram of the A enlarged structure of the utility model.

[0024] In the figure: 1. exhaust duct; 21. nano aerogel insulation felt; 22. rivet; 23. slot; 24. filter; 25. cleaning part; 251. bearing 1; 252. screw rod; 253. motor; 254. limit rod; 255. threaded slider; 256. brush plate; 26. collecting tank; 3. air inlet; 4. air outlet. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] Example 1

[0027] like Figure 1-4As shown, the utility model provides a novel composite exhaust duct structure, including an exhaust duct 1, an air inlet 3 is provided at the bottom of the exhaust duct 1, an air outlet 4 is provided at the top of the exhaust duct 1, a slot 23 is provided inside the exhaust duct 1, a filter screen 24 is provided on the slot 23, a collecting tank 26 is provided on one side of the outer wall of the exhaust duct 1, a cleaning part 25 is provided inside the exhaust duct 1, the cleaning part 25 includes a bearing 251 fixedly installed on the inner wall of the exhaust duct 1, a screw rod 252 is fixedly installed on the inner wall of the bearing 251, a motor 253 is fixedly installed on the extending end of the screw rod 252, a threaded slider 255 is threadedly connected to the outer wall of the screw rod 252, the other end of the threaded slider 255 is slidably connected to the outer wall of the limit rod 254, a brush plate 256 is installed on the outer wall of the threaded slider 255, and the brush surface of the brush plate 256 is meshed with the surface of the filter screen 24.

[0028] In this embodiment, a bearing 251 is installed in the exhaust duct 1, a screw rod 252 is installed on the inner wall of the bearing 251, and a motor 253 is installed on the extended end of the screw rod 252. The motor 253 drives the screw rod 252 to rotate, thereby driving the threaded slider 255 on the outer wall of the screw rod 252 to work and then drive the brush plate 256 to brush the filtered dust on the filter screen 24 into the collection tank 26.

[0029] Example 2

[0030] like Figure 1-4 As shown, on the basis of Example 1, the utility model provides a technical solution: the inner wall of the exhaust duct 1 is provided with a nano aerogel insulation felt 21, and the nano aerogel insulation felt 21 is installed on the inner wall of the exhaust duct 1 through rivets 22, and a box door is opened on the outer wall of the collecting tank 26, and the number of the collecting tanks 26 is two groups, which are symmetrically installed at both ends of the outer wall of the exhaust duct 1, the thickness of the nano aerogel insulation felt 21 is set to 6 mm, and the number of the rivets 22 is several groups, which are symmetrically arranged at equal intervals, and the exhaust duct 1 is protected from the inside to the outside by galvanized iron sheet and glass magnesium board, the thickness of the glass magnesium board is set to 6 mm, the inner surface of the nano aerogel insulation felt 21 is a thermal insulation layer, and the inner wall thickness of the exhaust duct 1 is less than 14 mm.

[0031] In this embodiment, a nano aerogel insulation felt 21 is provided on the inner wall of the exhaust duct 1, and the nano aerogel insulation felt 21 is installed on the inner wall of the exhaust duct 1 by rivets 22. Therefore, it has excellent characteristics such as good flexibility, low thermal conductivity, wide applicable temperature range, A1 fireproof, waterproof, no aging, adsorption, sound insulation and noise reduction, long service life, no powdering, and no irritating odor at high temperature.

[0032] The working principle of the structure of this novel composite exhaust duct is described in detail below.

[0033] like Figure 1-4As shown, when in use, a slot 23 is opened inside the exhaust pipe 1, and a filter screen 24 is slidably connected to the slot 23, and a collection slot 26 is opened on one side of the exhaust pipe 1, and a cleaning portion 25 is arranged in the collection slot 26, a bearing 251 is installed in the exhaust pipe 1, a screw rod 252 is installed on the inner wall of the bearing 251, and a motor 253 is installed at the extended end of the screw rod 252, and the motor 253 drives the screw rod 252 to rotate, thereby driving the threaded slider 255 on the outer wall of the screw rod 252 to work This in turn drives the brush plate 256 to brush the filtered dust on the filter screen 24 into the collecting tank 26, making it convenient to collect and process the dust to prevent the exhaust efficiency of the exhaust duct 1 from being reduced. A nano aerogel insulation felt 21 is provided on the inner wall of the exhaust duct 1, and the nano aerogel insulation felt 21 is installed on the inner wall of the exhaust duct 1 by rivets 22. Therefore, it has excellent characteristics such as good flexibility, low thermal conductivity, wide applicable temperature range, A1 fireproof, waterproof, no aging, adsorption, sound insulation and noise reduction, long service life, no powder loss, and no irritating odor at high temperature.

Claims

1. A novel composite exhaust duct structure, comprising an exhaust duct (1), characterized in that: An air inlet (3) is provided at the bottom of the exhaust pipe (1), an air outlet (4) is provided at the top of the exhaust pipe (1), a slot (23) is provided inside the exhaust pipe (1), a filter screen (24) is provided on the slot (23), a collecting tank (26) is provided on one side of the outer wall of the exhaust pipe (1), a cleaning section (25) is provided inside the exhaust pipe (1), the cleaning section (25) comprises a bearing 1 (251) fixedly mounted on the inner wall of the exhaust pipe (1), a screw rod (252) is fixedly mounted on the inner wall of the bearing 1 (251), and a motor (253) is fixedly mounted on the extended end of the screw rod (252); a nano aerogel insulation felt (21) is provided on the inner wall of the exhaust pipe (1), and the nano aerogel insulation felt (21) is mounted on the inner wall of the exhaust pipe (1) via a rivet (22).

2. The structure of a novel composite exhaust duct according to claim 1 is characterized in that: The thickness of the nano aerogel insulation felt (21) is set to 6 mm, and the number of the rivets (22) is a plurality of groups symmetrically arranged at equal intervals.

3. The structure of a novel composite exhaust duct according to claim 1 is characterized in that: The outer wall of the screw rod (252) is threadedly connected to a threaded slider (255), and the other end of the threaded slider (255) is slidably connected to the outer wall of the limiting rod (254).

4. The structure of a novel composite exhaust duct according to claim 3 is characterized in that: A brush plate (256) is installed on the outer wall of the threaded slider (255), and the brush surface of the brush plate (256) is meshed with the surface of the filter screen (24).

5. The structure of a novel composite exhaust duct according to claim 1 is characterized in that: The outer wall of the collecting trough (26) is provided with a box door, and the number of the collecting troughs (26) is two groups, which are symmetrically installed at the two ends of the outer wall of the exhaust pipe (1).

6. The structure of a novel composite exhaust duct according to claim 1 is characterized in that: The exhaust pipe (1) is provided with a protective layer of galvanized iron sheet and glass magnesium plate from the inside to the outside, and the thickness of the glass magnesium plate is set to 6 mm.

7. The structure of a novel composite exhaust duct according to claim 2 is characterized in that: The inner surface of the nano-aerogel insulation felt (21) is a heat-insulating layer, and the inner wall thickness of the exhaust pipe (1) is less than 14 mm.

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