Automatic dedusting fresh air device

Abstract

The utility model discloses an automatic dust removal fresh air device which comprises an air inlet pipeline and a fresh air pipeline, the air inlet pipeline and the fresh air pipeline are connected through an air duct, the end of the fresh air pipeline penetrates into the air inlet pipeline, an opening is formed in the peripheral face of the air duct, and a dust exhaust pipeline communicated with the interior of the air duct is installed on the peripheral face of the air duct. A dust removal fan is installed at the end of the dust discharge pipeline and is configured to remove dust adsorbed on the inner wall of the air duct, an air inlet and an air outlet are formed in the air inlet pipeline, and a fluid director enabling airflow to be in spiral motion is installed at the position, close to the air inlet, in the air inlet pipeline. The dust removal device is simple in structure, airflow rotates through the fluid director, dust particles are discharged from a gap between the air inlet pipeline and the air duct under the washing of the rotating airflow, and air with high-concentration dust particles is pumped away by the dust removal fan; and the residual clean air enters the fresh air pipeline and the fresh air fan, and enters the cabin from the air outlet through the fresh air fan, so that the purpose of automatic dust removal is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of fresh air devices, in particular to an automatic dust removal fresh air device. Background Art

[0002] At present, in order to ensure the air quality in the cabin, fresh air from outside needs to be sent into the cabin to replace the turbid air in the cabin. Dust and other dust particles in the air outside the cabin will affect the health of the people in the cabin; some dust particles may even damage the equipment in the cabin. Therefore, it is necessary to use a fresh air device to filter the dust particles in the air to ensure the cleanliness of the air sent into the cabin.

[0003] At present, fresh air devices all use filters for filtering, and use the filters to absorb dust particles and smoke to achieve air purification. However, dust particles adhere to the filters, which will cause the filters to become dirty and clogged, and the filters need to be replaced regularly. The subsequent maintenance costs are high, and the entire disassembly and assembly process will also take a certain amount of time. Therefore, an automatic dust removal fresh air device is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide an automatic dust removal and fresh air device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automatic dust removal and fresh air device, comprising an air intake duct and a fresh air duct, the air intake duct and the fresh air duct are connected by an air duct, and the end of the fresh air duct is passed into the interior of the air intake duct, the outer peripheral surface of the air duct is provided with an opening and is equipped with a dust exhaust duct connected to the interior of the air duct, a dust removal fan is installed at the end of the dust exhaust duct, and is configured to remove dust adsorbed on the inner wall of the air duct, the air intake duct is respectively provided with an air inlet and an air outlet, and a deflector that converts the airflow into a spiral motion is installed at a position near the air inlet inside the air intake duct.

[0006] As a further solution of the utility model: a fresh air fan for assisting in the rapid discharge of fresh air is installed at the end of the fresh air duct.

[0007] As a further solution of the utility model: the fresh air duct includes a vertical section and an inclined section that are integrally connected, the vertical section penetrates into the interior of the air duct and extends into the interior of the air intake duct, and the outer peripheral surface of the inclined section is connected to the air duct.

[0008] As a further solution of the utility model: the diameter of the vertical section is smaller than the maximum diameter of the inclined section, and a gap is formed between the inclined section and the end of the air inlet duct to facilitate dust and smoke to enter the air duct.

[0009] As a further solution of the utility model: the inner wall of the air intake duct is connected to the surface of the deflector.

[0010] As a further solution of the utility model: the side wall of the dust exhaust duct is inclined inwardly along one side of the dust removal fan.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The airflow rotates when passing through the deflector. Under the impact of the rotating airflow, dust particles are discharged from the gap between the air inlet duct and the air duct, and the air with high concentration of dust particles is sucked away by the dust removal fan; the remaining clean air enters the fresh air duct and the fresh air fan, and enters the cabin from the air outlet through the fresh air fan, thus achieving the purpose of automatic dust removal. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the fresh air device of the utility model;

[0014] Figure 2 This is a cross-sectional schematic diagram of the fresh air device of the utility model;

[0015] Figure 3 This is a schematic diagram of the principle of the fresh air device of the utility model;

[0016] In the figure: 1. Air intake duct; 2. Air duct; 3. Fresh air duct; 4. Dust exhaust duct; 5. Deflector; 6. Dust removal fan; 7. Fresh air fan. DETAILED DESCRIPTION

[0017] 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.

[0018] See also Figure 1-3 In an embodiment of the utility model, an automatic dust removal and fresh air device comprises an air intake duct 1 and a fresh air duct 3, the air intake duct 1 and the fresh air duct 3 are connected through an air duct 2, and the end of the fresh air duct 3 is passed through the interior of the air intake duct 1, the outer peripheral surface of the air duct 2 is provided with an opening and is equipped with a dust exhaust duct 4 connected with the interior of the air duct 2, a dust removal fan 6 is installed at the end of the dust exhaust duct 4, the side wall of the dust exhaust duct 4 is inclined inwardly along one side of the dust removal fan 6, and is configured to remove dust adsorbed on the inner wall of the air duct 2, the air intake duct 1 is respectively provided with an air inlet and an air outlet, and a deflector 5 for converting the airflow into a spiral motion is installed at a position near the air inlet inside the air intake duct 1, and the inner wall of the air intake duct 1 is connected to the surface of the deflector 5.

[0019] Specifically, when the dust-laden air enters the air intake duct 1 and passes through the deflector 5, the airflow changes into a spiral motion, and the dust particles are in a centrifugal field. Under the action of the centrifugal force, they are thrown to the inner surface of the air intake duct 1. Secondly, the dust removal fan 6 in the dust exhaust duct 4 generates suction on the air intake duct 1, the air duct 2 and the inside of the dust exhaust duct 4, so that the dust in the air intake duct 1 passes through the gap between the air intake duct 1 and the fresh air duct 3 and enters the inside of the air duct 2, and then is discharged through the dust removal fan 6, thereby removing the dust and smoke in the airflow.

[0020] See also Figure 2 In one embodiment, in this embodiment, preferably, a fresh air fan 7 for assisting in the rapid discharge of fresh air is installed at the end of the fresh air duct 3, and the fresh air enters the cabin from the air outlet through the fresh air fan 7 to achieve the purpose of dust removal.

[0021] See also Figure 2 In one embodiment, in order to facilitate the separation of dust, smoke and fresh air in 1, in this embodiment, preferably, the fresh air duct 3 includes a vertical section and an inclined section that are integrally connected, the vertical section is penetrated into the interior of the air duct 2 and extends to the interior of the air intake duct 1, and the outer peripheral surface of the inclined section is connected to the air duct 2; the diameter of the vertical section is smaller than the maximum diameter of the inclined section, and the inclined section and the end of the air intake duct 1 form a gap that facilitates the entry of dust and smoke into the air duct 2. Under the flushing of the rotating airflow, dust particles are discharged from the gap between the air intake duct 1 and the air duct 2, and the air with high concentration of dust particles is sucked away by the dust removal fan 6; the remaining clean air enters the fresh air duct 3 and the fresh air fan 7, and enters the cabin from the air outlet through the fresh air fan 7, thereby achieving the purpose of automatic dust removal.

[0022] In order to increase the ventilation volume and minimize the resistance of the automatic dust removal fresh air device, a plurality of deflectors 5 are connected in parallel. Through similar products and early principle prototype tests, the dust removal efficiency is greater than 95%.

[0023] The working principle and use process of the utility model are as follows: when the automatic dust removal and fresh air device is working, the fresh air fan 7 and the dust removal fan 6 are turned on, and the dust-containing air axially enters the automatic dust removal and fresh air device. Under the action of the deflector 5, the airflow becomes a spiral motion, and the dust particles are in a centrifugal field. Under the action of the centrifugal force, they are thrown to the inner surface of the air intake duct 1. Under the flushing of the rotating airflow, the dust particles are discharged from the gap between the air intake duct 1 and the air duct 2, and the air with high concentration of dust particles is sucked away by the dust removal fan; the remaining clean air enters the fresh air fan 7, and enters the cabin from the air outlet through the fresh air fan 7, so as to achieve the purpose of automatic dust removal.

[0024] Although this specification is described according to implementation modes, not every implementation mode includes only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0025] Therefore, the above description is only a preferred embodiment of the present application and is not intended to limit the scope of implementation of the present application; that is, all equivalent changes made according to the scope of the claims of the present application are within the protection scope of the claims of the present application.

Claims

1. An automatic dust removal and fresh air device, comprising an air intake duct (1) and a fresh air duct (3), It is characterized in that The air intake duct (1) and the fresh air duct (3) are connected via an air duct (2), and the end of the fresh air duct (3) is inserted into the interior of the air intake duct (1). The outer peripheral surface of the air duct (2) is provided with an opening and is provided with a dust exhaust duct (4) connected to the interior of the air duct (2). A dust removal fan (6) is provided at the end of the dust exhaust duct (4) and is configured to remove dust adsorbed on the inner wall of the air duct (2). The air intake duct (1) is provided with an air inlet and an air outlet, respectively. A deflector (5) for converting airflow into spiral motion is provided at a position near the air inlet inside the air intake duct (1).

2. The automatic dust removal and fresh air device according to claim 1, It is characterized in that A fresh air fan (7) is installed at the end of the fresh air duct (3) to assist in the rapid discharge of fresh air.

3. The automatic dust removal and fresh air device according to claim 1, It is characterized in that The fresh air duct (3) comprises a vertical section and an inclined section which are integrally connected, the vertical section being inserted into the interior of the air duct (2) and extending into the interior of the air intake duct (1), and the outer peripheral surface of the inclined section being connected to the air duct (2).

4. The automatic dust removal and fresh air device according to claim 3, It is characterized in that The diameter of the vertical section is smaller than the maximum diameter of the inclined section, and a gap is formed between the inclined section and the end of the air inlet duct (1) to facilitate dust and smoke to enter the air duct (2).

5. The automatic dust removal and fresh air device according to claim 1, It is characterized in that The inner wall of the air intake duct (1) is connected to the surface of the deflector (5).

6. The automatic dust removal and fresh air device according to claim 1, It is characterized in that The side wall of the dust exhaust duct (4) is inclined inwardly along one side of the dust removal fan (6).

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