Dust falling device for air inlet of fan

Abstract

The utility model provides a dust falling device for an air inlet of a fan. The dust falling device comprises an outer air duct and an inner air duct, rotary fan blades are installed on one side of the interior of the outer air duct, the outer air duct is arranged on one side of the inner air duct in a sleeving mode, fixing pieces are distributed on one side of the inner air duct at equal intervals and fixedly connected with one side of the inner air duct, one side of each fixing piece is fixedly connected with the outer air duct, a connecting part is integrally formed on one side of the inner air duct, and a flow guide plate is integrally formed on one side of the inner air duct. The inner air duct is matched with the outer air duct and the rotating fan blades to form a dust falling structure, the inner air duct is matched with the connecting part to be connected with the air duct of the fan, the rotating fan blades rotate during air inlet, air forms rotational flow, and the horn-shaped inner and outer air duct structure can increase the air velocity and further increase the centrifugal force; particulate matters in the air are dispersed all around under the action of centrifugal force, so that the particulate matters are discharged through the space between the inner air duct and the outer air duct, and fresh air with low floating dust content can be obtained in the central air duct.

Description

Technical Field

[0001] The utility model relates to a dust suppression device, in particular to a dust suppression device for an air inlet of a fan, and belongs to the technical field of fan dust suppression. Background Art

[0002] A fan is a machine that relies on input mechanical energy to increase gas pressure and discharge gas. It is a driven fluid machine. Fan is the customary abbreviation for gas compression and gas transmission machinery. Commonly referred to as fans include ventilators, blowers, and wind turbines. Fans are widely used in factories, mines, tunnels, cooling towers, vehicles, ships, and buildings for ventilation, dust removal, and cooling; in boilers and industrial furnaces for ventilation and ventilation; in air conditioning equipment and household appliances for cooling and ventilation; in grain drying and sorting; in wind tunnels as wind sources and in the inflation and propulsion of hovercraft;

[0003] A Chinese patent application (CN202120651735.6) discloses a dual-inlet dust-proof fan, which is equipped with a dust screen at the ventilation opening to prevent dust from entering the fan, reduce friction damage to the blades, and increase service life. However, existing fans mostly use a filter structure to protect the air inlet from dust. When ventilating in an environment with high air density such as a sandstorm, the filter dust reduction structure is easily blocked, requiring regular maintenance and unable to operate continuously.

[0004] In order to solve the above technical problems, a dust reduction device for a fan air inlet is proposed. Utility Model Content

[0005] In view of this, the present invention provides a dust reduction device for a fan air inlet to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial option.

[0006] The technical solution of the utility model is achieved as follows: a dust reduction device for an air inlet of a fan, comprising an outer air duct and an inner air duct;

[0007] A rotating fan blade is installed on one side of the inner part of the outer air duct, and the outer air duct is mounted on one side of the inner air duct. Fixing parts are evenly distributed and fixedly connected to one side of the inner air duct, and one side of the fixing part is fixedly connected to the outer air duct. A connecting part is integrally formed on one side of the inner air duct, and a guide plate is integrally formed on one side of the inner air duct.

[0008] Further preferably, a cover is provided on one side of the outer air duct, and a handle is fixedly connected to one side of the cover.

[0009] Further preferably, a clamping ring is fixedly connected to one side of the cover, a clamping groove is integrally formed on one side of the outer air duct, and the cover is engaged with the clamping ring through the clamping ring.

[0010] Further preferably, fixing holes are equidistantly distributed on one side of the inner air duct.

[0011] Further preferably, the connecting portion of the inner air duct is provided with a sealing ring.

[0012] Further preferably, a curved portion is integrally formed on one side of the inner air duct.

[0013] The embodiment of the present invention has the following advantages due to the adoption of the above technical solution:

[0014] First, the utility model forms a dust reduction structure by arranging an inner air duct, an outer air duct and rotating blades. The inner air duct is connected to the air duct of the fan by the connecting part. When the air enters, the rotating blades rotate to form a swirl in the air. The trumpet-shaped inner and outer air duct structures can increase the air flow rate and thus increase the centrifugal force. Under the action of centrifugal force, the particles in the air are dispersed to the surroundings, so that the particles are discharged between the inner and outer air ducts. The central air duct can obtain fresh air with low dust content.

[0015] Second, the utility model provides a cover to protect the rotating fan blades from dust when idle, and provides a clamping ring to engage the cover with the outer fan tube, so that the cover can be quickly removed when needed.

[0016] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present invention will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0018] Figure 1 It is a structural diagram of the utility model;

[0019] Figure 2 This is a connection structure diagram of the utility model;

[0020] Figure 3 This is a diagram showing the connection structure between the outer and inner air ducts of the present invention;

[0021] Figure 4 It is a cross-sectional structural diagram of the outer and inner air ducts of the present invention.

[0022] Figure numerals: 10, outer air duct; 11, cover; 12, handle; 13, clamping ring; 14, slot; 15, rotating fan blade; 20, inner air duct; 21, fixing hole; 22, arc-shaped part; 23, connecting part; 24, sealing ring; 25, fixing part; 26, guide plate. DETAILED DESCRIPTION

[0023] Hereinafter, only certain exemplary embodiments are briefly described. As will be appreciated by those skilled in the art, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are to be regarded as illustrative in nature and not restrictive.

[0024] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0025] like Figure 1-4 As shown, an embodiment of the present invention provides a dust reduction device for an air inlet of a fan, which is composed of an outer air cylinder 10 , an inner air cylinder 20 and a rotating fan blade 15 .

[0026] The rotating fan blades 15 are installed on one side of the outer air duct 10, and the outer air duct 10 is mounted on one side of the inner air duct 20. The outer air duct 10 and the inner air duct 20 are both integrally formed, and their surfaces remain smooth. One side of the inner air duct 20 is evenly distributed and fixedly connected with fixing parts 25. One side of the fixing part 25 is fixedly connected to the outer air duct 10. One side of the fixing part 25 is integrally formed into an arc shape to reduce the resistance generated by the fixing part 25 during ventilation. One side of the inner air duct 20 is integrally formed with a connecting portion 23 to facilitate connecting the inner air duct 20 with the air duct of the fan. One side of the inner air duct 20 is integrally formed with a guide plate 26. The guide plate 26 guides the air dispersed to the surroundings and the particulate matter carried in the air, so that they are discharged along the air duct between the inner air duct 20 and the outer air duct 10.

[0027] In one embodiment, in order to facilitate dust protection of the rotating fan blades 15 when idle, a cover 11 is provided on one side of the outer fan tube 10, a handle 12 is fixedly connected to one side of the cover 11, a clamping ring 13 is fixedly connected to one side of the cover 11, and a card slot 14 is integrally formed on one side of the outer fan tube 10. The cover 11 is engaged with the card slot 14 of the outer fan tube 10 through the clamping ring 13, so that the cover 11 can be easily removed from the outer fan tube 10 when needed.

[0028] In one embodiment, in order to facilitate the connection and fixation of the inner air duct 20 to the air duct of the fan, fixing holes 21 are evenly distributed on one side of the inner air duct 20.

[0029] In one embodiment, in order to enhance the sealing performance of the connection between the inner air duct 20 and the air duct and prevent air leakage from affecting the air intake efficiency, the connection portion 23 of the inner air duct 20 is provided with a sealing ring 24 .

[0030] In one embodiment, in order to reduce the resistance when exhausting particulate matter in the air, an arc-shaped portion 22 is integrally formed on one side of the inner air cylinder 20 .

[0031] In one embodiment, the rotating fan blades 15 are driven by electricity to make the rotating fan blades 15 rotate quickly. The rotating fan blades 15 are driven by a built-in drive motor. An electric drive device can be installed at other locations to complete the drive power supply of the rotating fan blades 15. In this way, the drive of the rotating fan blades 15 is not affected by the high dust environment.

[0032] When the utility model is in operation: the inner air duct 20 is connected and engaged with the air duct of the fan through the connecting portion 23, the sealing ring 24 fills the connection between the inner air duct 20 and the air duct, and the inner air duct 20 is connected and fixed to the air duct through the fixing hole 21 with components such as bolts. When in use, the handle 12 is pulled to remove the cover 11, and the rotating fan blades 15 are started to form a vortex of air and enter the outer air duct 10. The trumpet-shaped outer air duct 10 and the inner air duct 20 can increase the air flow rate and thus increase the centrifugal force, so that the particles in the air are dispersed to the surroundings under the action of centrifugal force. The particles in the air are guided by the guide plate 26 into between the outer air duct 10 and the inner air duct 20, and are discharged through the arc-shaped portion 22, so that the dust content in the air in the central air duct is reduced, and after passing through the inner air duct 20, it enters the air duct of the fan. No regular maintenance is required during use and it can operate continuously.

[0033] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various modifications or substitutions within the technical scope disclosed in the present invention, and such modifications or substitutions are intended to be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope of protection of the claims.

Claims

1. A fan inlet dust suppression device, characterized by: It comprises an outer air duct (10) and an inner air duct (20); A rotating fan blade (15) is installed on one side of the inner portion of the outer wind tube (10). The outer wind tube (10) is fitted onto one side of the inner wind tube (20). Fixing members (25) are fixedly connected to one side of the inner wind tube (20) at equal intervals. One side of the fixing member (25) is fixedly connected to the outer wind tube (10). A connecting portion (23) is integrally formed on one side of the inner wind tube (20). A guide plate (26) is integrally formed on one side of the inner wind tube (20).

2. The fan inlet dust suppression device according to claim 1, characterized in that: A cover (11) is provided on one side of the outer air duct (10), and a handle (12) is fixedly connected to one side of the cover (11).

3. The fan inlet dust suppression device according to claim 2, characterized in that: A clamping ring (13) is fixedly connected to one side of the cover (11), a clamping groove (14) is integrally formed on one side of the outer air duct (10), and the cover (11) is clamped with the clamping groove (14) of the outer air duct (10) via the clamping ring (13).

4. The fan inlet dust suppression device according to claim 1, characterized in that: One side of the inner air cylinder (20) is provided with fixing holes (21) distributed at equal intervals.

5. The fan inlet dust suppression device according to claim 1, characterized in that: The connecting portion (23) of the inner air cylinder (20) is sleeved with a sealing ring (24).

6. The fan inlet dust suppression device according to claim 1, characterized in that: An arc-shaped portion (22) is integrally formed on one side of the inner air cylinder (20).

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