Fire-fighting smoke exhaust air duct with inner wall cleaning structure

Abstract

The utility model discloses a fire-fighting and smoke-discharging air duct with an inner wall cleaning structure, which comprises a fire-fighting and smoke-discharging air duct structure, a dust discharging structure is fixed on the rear side of the fire-fighting and smoke-discharging air duct structure, the fire-fighting and smoke-discharging air duct structure comprises a fire-fighting and smoke-discharging air duct body serving as a foundation, and a bearing frame group is fixed inside the fire-fighting and smoke-discharging air duct body. Meanwhile, dust outlets are formed in the two sides of the fire-fighting smoke exhaust air duct in a penetrating mode, a connecting shaft is rotationally installed between the bearing frame sets, a connecting plate for driving and adjusting the cleaning plate is fixedly welded to the surface of the connecting shaft, a driving scraper blade is fixedly welded to the bottom of the cleaning plate, and a bearing cover with a smoke penetrating hole is rotationally installed at the bottom of one end of the connecting shaft; and the dust discharging structure comprises a connecting pipe which wraps the dust outlet, one end of the connecting pipe is connected with the three-way pipe, and the fire-fighting smoke discharging air duct with the inner wall cleaning structure is installed and fixed through the arranged bearing frame set.

Description

Technical Field

[0001] The utility model relates to the technical field of fire smoke exhaust ducts, in particular to a fire smoke exhaust duct with an inner wall cleaning structure. Background Art

[0002] Ventilation and exhaust ducts are often used in coal mines. The exhaust ducts used in coal mines include a cylinder body, which includes a skeleton layer and inner and outer surface layers attached to the inner and outer surfaces of the skeleton layer. The cylinder body is a straight cylinder, that is, the diameters of the ports at both ends of the cylinder body are the same as the diameter of the cylinder body. After searching, it is found that the publication number of the existing public technology is: CN207111156U, a fire smoke exhaust duct, including a cylinder body, the cylinder body includes a cylindrical base layer, the outer surface of the base layer is provided with a fireproof layer, the inside of the base layer is provided with a cylindrical reinforcement layer, the base layer and There are gaps between the reinforcement layers, and multiple tie rods are connected between the base layer and the reinforcement layer. The inner surface of the reinforcement layer is tightly attached to the heat-resistant layer. Connecting plates are provided at both ends of the cylinder, and the connecting plates are connected to the base layer. The utility model adopts a structure in which a fireproof layer and a heat-resistant layer are respectively arranged inside and outside, and can undertake smoke exhaust work in case of fire. There are also gaps between the inner and outer layers, which can block the spread of heat and the noise generated during work. The base layer and the reinforcement layer are arranged inside, which increases the overall structural strength of the air duct and improves the service life of the air duct.

[0003] To sum up: the fire smoke exhaust duct in the above case does not have the function of cleaning the inner wall, which causes the inner wall of the fire smoke exhaust duct to easily accumulate dust after long-term use, thereby reducing the smoke ventilation volume. Utility Model Content

[0004] The purpose of the utility model is to address the deficiencies in the prior art and to provide a fire smoke exhaust duct with an inner wall cleaning structure, so as to solve the problem that the fire smoke exhaust duct in the above case proposed in the above background technology does not have the inner wall cleaning function, resulting in the accumulation of dust on the inner wall of the fire smoke exhaust duct after long-term use, thereby reducing the smoke ventilation volume.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fire smoke exhaust duct with an inner wall cleaning structure, comprising a fire smoke exhaust duct structure, a dust exhaust structure being fixed to the rear side of the fire smoke exhaust duct structure;

[0006] The fire smoke exhaust duct structure includes a fire smoke exhaust duct body as a basis, and a bearing frame group is fixed inside the fire smoke exhaust duct body, and dust outlets are opened on both sides of the fire smoke exhaust duct body;

[0007] A connecting shaft is rotatably installed between the bearing frame groups, and a connecting plate for driving and adjusting the cleaning plate is welded and fixed on the surface of the connecting shaft, and a driving scraper is welded and fixed on the bottom of the cleaning plate.

[0008] By adopting the above technical solution, the bearing frame group is arranged to achieve installation and fixing.

[0009] Preferably, a bearing cover with a smoke hole is rotatably mounted on the bottom of one end of the connecting shaft, and an impeller is fixed on the bottom of one end of the connecting shaft.

[0010] By adopting the above technical solution, a penetrating fixed connection is achieved through the provided connecting shaft.

[0011] Preferably, the dust exhaust structure includes a connecting pipe wrapped around the dust outlet, and one end of the connecting pipe is installed and connected to the three-way pipe, and the three-way pipe is installed and connected to one end of the negative pressure machine, and the negative pressure machine is fixed to the rear side of the fire smoke exhaust cylinder through a fixing plate.

[0012] By adopting the above technical solution, a three-way installation connection is achieved through the provision of a three-way pipe.

[0013] Preferably, a group of driving scrapers are provided, and the lower side of the driving scrapers is arranged in arc-shaped contact with the surface of the bearing cover.

[0014] By adopting the above technical solution, the driving scraper is arranged to achieve force rotation adjustment.

[0015] Preferably, the overall shape of the bearing cover is a "U-shaped pot".

[0016] By adopting the above technical solution, the bearing cover is arranged to achieve a through-and-through rotation matching connection.

[0017] Preferably, the connecting pipes are provided in one group, and a single connecting pipe is provided in an "open" configuration.

[0018] By adopting the above technical solution, a two-way installation connection is achieved through the provided connecting pipe.

[0019] Compared with the prior art, the utility model has the following beneficial effects: the fire smoke exhaust duct with inner wall cleaning structure is

[0020] (1) This case sets up a fire smoke exhaust duct structure to solve the problem that the fire smoke exhaust duct in the above case does not have the function of cleaning the inner wall, which leads to the accumulation of dust on the inner wall of the fire smoke exhaust duct after long-term use, thereby reducing the smoke flow. When the smoke is discharged, the impeller drives the connecting shaft to rotate. When the connecting shaft rotates, the cleaning plate and the driving scraper are driven to rotate synchronously. When the cleaning plate and the driving scraper are driven to rotate, they not only scrape and clean the inner wall of the fire smoke exhaust duct, but also scrape the dust falling on the bearing cover to the dust outlet for extraction and discharge;

[0021] (2) By setting up a dust exhaust structure, it is avoided that too much dust is scraped off, causing all the dust to fall below the fire smoke exhaust air cylinder, which not only easily causes dust blockage below the fire smoke exhaust air cylinder, but also causes a large amount of falling dust below the fire smoke exhaust air cylinder during the dust falling process. When the scraped dust falls on the bearing cover, the negative pressure machine can extract and discharge the fallen dust through the connecting pipe and the three-way pipe during operation, and the negative pressure machine can also extract and discharge the discharged smoke during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the fire smoke exhaust fan body, bearing frame assembly, dust outlet, connecting shaft, cleaning plate, driving scraper, bearing cover and impeller structure of the utility model;

[0024] Figure 3 This is a schematic diagram of the bearing cover and smoke hole structure of the utility model;

[0025] Figure 4 It is a schematic diagram of the dust removal structure of the utility model.

[0026] In the figure: 1. Fire smoke exhaust duct structure; 101. Fire smoke exhaust duct body; 102. Bearing frame assembly; 103. Dust outlet; 104. Connecting shaft; 105. Cleaning plate; 106. Driving scraper; 107. Bearing cover; 108. Smoke hole; 109. Impeller; 2. Dust exhaust structure; 201. Connecting pipe; 202. Three-way pipe; 203. Negative pressure machine. DETAILED DESCRIPTION

[0027] 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.

[0028] See also Figure 1-4 The utility model provides a technical solution: a fire smoke exhaust fan with an inner wall cleaning structure, such as Figure 1 , Figure 2 and Figure 3 As shown, a fire smoke exhaust duct structure 1 is included, which includes a fire smoke exhaust duct body 101 as a basis, and a bearing frame group 102 is fixed inside the fire smoke exhaust duct body 101. At the same time, dust outlets 103 are opened on both sides of the fire smoke exhaust duct body 101.

[0029] The above scheme further includes a connecting shaft 104 rotatably installed between the bearing frame groups 102, and a connecting plate for driving and adjusting the cleaning plate 105 is welded and fixed on the surface of the connecting shaft 104, and a driving scraper 106 is welded and fixed to the bottom of the cleaning plate 105, and a group of driving scrapers 106 are provided, and the bottom of the driving scraper 106 is arranged in an arc-shaped contact with the surface of the bearing cover 107. When the above components are provided in one group, it not only reflects the symmetry of the installation of the above components, but also reflects the circular rotation of the above components under force rotation adjustment, and when the bottom of the driving scraper 106 is arranged in an arc-shaped contact with the surface of the bearing cover 107, it utilizes the driving scraper 106 to rotate under force to scrape the dust falling on the surface of the bearing cover 107 at the dust outlet 103 for extraction and discharge, thereby avoiding the dust falling on the surface of the bearing cover 107 always being in a falling position, which is easy to cause dust accumulation.

[0030] Furthermore, in the above scheme, a bearing cover 107 with a smoke hole 108 is rotatably installed at the bottom of one end of the connecting shaft 104, and the overall shape of the bearing cover 107 is a "U-shaped pot" arrangement. When the overall shape of the above-mentioned components is a "U-shaped pot" arrangement, it not only reflects the covering connectivity of the above-mentioned component installation arrangement, but also reflects the smoke discharge property of the above-mentioned component installation arrangement. When the overall shape of the above-mentioned components is a "U-shaped pot" arrangement, it also reflects the axis line connectivity of the above-mentioned component installation arrangement and the aesthetic and practical nature of the overall arrangement. In addition, an impeller 109 is fixed to the bottom of one end of the connecting shaft 104.

[0031] like Figure 4As shown, a dust exhaust structure 2 is fixed on the rear side of the fire smoke exhaust duct structure 1, and the dust exhaust structure 2 includes a connecting pipe 201 wrapped and installed on the dust outlet 103. A group of connecting pipes 201 are provided, and a single connecting pipe 201 is set in an "open" configuration. When the above-mentioned components are provided with a group of two, this not only reflects the wrapping and installation of one end of the above-mentioned component on the dust outlet 103, but also reflects the through-conveying property between the above-mentioned component and the dust outlet 103. When the above-mentioned components are set in an "open" configuration, this not only reflects the installation connectivity between the above-mentioned component and the two ends of the three-way pipe 202, but also reflects the practical connectivity and force support when the above-mentioned components are set in an "open" configuration. One end of the connecting pipe 201 is installed and connected to the three-way pipe 202, and at the same time, the three-way pipe 202 is installed and connected to one end of the negative pressure machine 203. The negative pressure machine 203 is fixed to the rear side of the fire smoke exhaust duct body 101 through a fixing plate.

[0032] In the above scheme, during the smoke exhaust process, the impeller 109 drives the connecting shaft 104 to rotate under force, and when the connecting shaft 104 is rotated under force, the cleaning plate 105 and the driving scraper 106 are driven to rotate synchronously under force. When the cleaning plate 105 and the driving scraper 106 are rotated under force, not only the inner wall of the fire smoke exhaust air cylinder 101 is scraped and cleaned, but also the dust falling on the bearing cover 107 is scraped to the dust outlet 103 for extraction and discharge. During the operation of the negative pressure machine 203, the fallen dust is extracted and discharged through the connecting pipe 201 and the three-way pipe 202, and the discharged smoke can also be extracted and discharged during the operation of the negative pressure machine 203.

[0033] The directions or positional relationships indicated by terms such as "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings. They are merely simplified descriptions 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 direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the protection content of the present invention.

[0034] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A fire smoke exhaust duct with an inner wall cleaning structure, comprising a fire smoke exhaust duct structure (1), characterized in that: A dust exhaust structure (2) is fixed to the rear side of the fire smoke exhaust duct structure (1); The fire smoke exhaust duct structure (1) comprises a fire smoke exhaust duct body (101) as a basis, a bearing frame group (102) is fixed inside the fire smoke exhaust duct body (101), and dust outlets (103) are provided through both sides of the fire smoke exhaust duct body (101); A connecting shaft (104) is rotatably mounted between the bearing frame groups (102), and a connecting plate for driving and adjusting the cleaning plate (105) is welded and fixed on the surface of the connecting shaft (104), while a driving scraper (106) is welded and fixed on the bottom of the cleaning plate (105).

2. The fire smoke exhaust duct with inner wall cleaning structure according to claim 1, characterized in that: A bearing cover (107) with a smoke-permeable hole (108) is rotatably mounted at the bottom of one end of the connecting shaft (104), and an impeller (109) is fixed at the bottom of one end of the connecting shaft (104).

3. The fire smoke exhaust duct with inner wall cleaning structure according to claim 1, characterized in that: The dust exhaust structure (2) comprises a connecting pipe (201) which is wrapped around the dust outlet (103), and one end of the connecting pipe (201) is connected to a three-way pipe (202), while the three-way pipe (202) is connected to one end of a negative pressure machine (203), and the negative pressure machine (203) is fixed to the rear side of the fire smoke exhaust air cylinder (101) via a fixing plate.

4. The fire smoke exhaust duct with inner wall cleaning structure according to claim 1, characterized in that: The driving scraper (106) is provided in a group, and the lower part of the driving scraper (106) is arranged in arc-shaped contact with the surface of the bearing cover (107).

5. The fire smoke exhaust duct with inner wall cleaning structure according to claim 2, characterized in that: The overall shape of the bearing cover (107) is a "U-shaped pot".

6. The fire smoke exhaust duct with inner wall cleaning structure according to claim 3, characterized in that: The connecting pipes (201) are provided in one group, and a single connecting pipe (201) is provided in an "open" configuration.

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