CN115750412A - Energy-saving fan filter unit - Google Patents

Abstract

The invention discloses an energy-saving fan filter unit, which comprises an air filter, the side of the air filter is provided with a streamlined casing for drag reduction, the edge of the casing is connected to the edge of the air filter, and the casing is connected to the A cavity is formed between the devices; a mixed-flow fan for introducing air into the cavity is provided on the casing. The invention can reduce eddy current resistance, generate air flow more smoothly, has simple structure, and reduces production cost.

Description

An energy-saving fan filter unit

technical field

The invention belongs to the technical field of fan filter units, and relates to an energy-saving fan filter unit.

Background technique

The existing fan filter unit adopts a centrifugal fan with relatively high wind pressure and low air volume and a cube-shaped casing. The fan sucks in air from one side of the casing, decelerates, pressurizes and stabilizes the pressure in the cubic casing, and then discharges it through the high-efficiency filter from the other side.

The centrifugal fan used in the fan filter unit is generally used for air transportation in long pipelines. The fan filter unit itself has small resistance and requires low wind pressure; the centrifugal fan makes the air turn sharply at right angles twice inside the fan filter unit, and the turning causes the air flow in the shell Chaos; the sharp corners of the cube shell further increase the vortex in the shell, resulting in energy loss, which reduces the efficiency of the fan; the structure of the partition, air deflector and air duct plate in the fan filter unit is complex, which will generate additional flow resistance and lose energy .

Contents of the invention

The purpose of the present invention is to overcome the disadvantages of the prior art and provide an energy-saving fan filter unit, which can reduce eddy current resistance, has a simple structure and reduces costs.

In order to achieve the above object, the present invention is achieved by adopting the following technical solutions:

An energy-saving fan filter unit, including an air filter, the side of the air filter is provided with a streamlined casing for drag reduction, the edge of the casing is connected to the edge of the air filter, and a gap is formed between the casing and the air filter. Cavity; the casing is provided with a mixed-flow fan for introducing air into the cavity, and the mixed-flow fan passes through the casing to make the air flow in a streamlined manner in the cavity.

Optionally, the housing is provided with an installation hole for installing the mixed flow fan, and the wall of the installation hole is connected to the casing of the mixed flow fan.

Optionally, the edge of the casing to which the gas of the mixed-flow fan blows is streamlined.

Optionally, the edge of the casing to which the gas of the mixed-flow fan blows is in the shape of a convex arc.

Optionally, a bracket for installing the motor of the mixed flow fan is provided in the cavity, and the bracket is connected to the inner shell wall of the shell.

Optionally, the bracket is provided with a motor hole for installing the motor of the mixed-flow fan, and the motor housing of the motor of the mixed-flow fan is connected to the motor hole.

Optionally, a sealing device is provided between the filter and the edge of the casing.

Optionally, the sealing device includes a sealing clip groove, and the edge of the filter and the edge of the casing are arranged in the sealing clip groove.

Optionally, a protrusion is provided on the edge of the housing, and the protrusion is disposed between the inner groove wall of the sealing clamp groove and the filter.

Compared with the prior art, the beneficial effects achieved by the present invention are as follows:

The invention provides an energy-saving fan filter unit. The streamlined casing can reduce eddy current resistance, and the mixed-flow fan passes through the casing to make the air flow in a streamlined manner in the cavity, so that the generated air flows more smoothly, reduces energy loss, and improves the efficiency of the fan;

The gas flow direction of the mixed-flow fan conforms to the shape of the streamlined shell, which further reduces the eddy current resistance, and is energy-saving and low-noise;

The energy-saving fan filter unit of the invention has simple structure and low production cost.

Description of drawings

Fig. 1 shows the schematic diagram of the embodiment of the present invention;

Figure 2 is the front view of Figure 1.

In the figure: 1. Air filter; 2. Shell; 21. Mounting hole; 3. Cavity; 4. Mixed flow fan; 41. Motor; 5. Bracket; 51. Motor hole; rise.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, a feature defined as "first", "second", etc. may expressly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention based on specific situations.

Embodiment one

As shown in Figure 1 and Figure 2, an energy-saving fan filter unit includes an air filter 1, one side of the air filter 1 is provided with a streamlined casing 2 for drag reduction, the edge of the casing 2 is connected to the edge of the air filter 1 Connected, a cavity 3 is formed between the shell 2 and the air filter 1, the shell 2 above the cavity 3 is a plane, and the edge of the shell 2 is streamlined; the shell 2 is provided with a mixed flow fan 4 for introducing air into the cavity 3 , The housing 2 is provided with an installation hole 21 for installing the mixed flow fan 4 , and the wall of the installation hole 21 is connected with the casing of the mixed flow fan 4 .

Embodiment two

As shown in FIG. 1 and FIG. 2 , the difference from the first embodiment is that the outer periphery of the mixed flow fan 4 of the present embodiment is in the shape of a convex arc on the outer periphery of the casing 2 where the gas is blown.

The cavity 3 is provided with a bracket 5 for installing the mixed flow fan motor 41, the bracket 5 is connected to the inner wall of the shell 2, the bracket 5 is provided with a motor hole 51, and the motor casing of the mixed flow fan motor 41 is connected to the motor hole 51. Hole walls meet.

The edge of the filter 1 and the housing 2 is provided with a sealing device for sealing the cavity. The sealing device includes a four-section sealing clamp groove 6, but is not limited to the sealing clamp groove 6. The two ends of the four-section sealing clamp groove 6 are connected first in sequence , form a square, the edge of the shell 2 is provided with a protrusion 7, the edge of the filter 1 and the protrusion 7 are arranged in the sealing clamp groove 6, and the protrusion 6 is arranged between the inner groove wall of the sealing clamp groove 6 and the filter 1 , The protrusion 7 facilitates the installation and sealing of the housing 2 and the sealing clip groove 6 .

The above is only a preferred embodiment of the present invention, it should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the present invention, some improvements and modifications can also be made. It should also be regarded as the protection scope of the present invention.

Claims (9)

1. An energy-saving fan filter unit, comprising an air filter, characterized in that: the side of the air filter is provided with a streamlined shell for drag reduction, the edge of the shell is connected to the edge of the air filter, and the shell is connected to the air filter A cavity is formed between the air filters; a mixed-flow fan for introducing air into the cavity is provided on the casing. 2. An energy-saving fan filter unit according to claim 1, characterized in that: the casing is provided with an installation hole for installing the mixed flow fan, and the hole wall of the installation hole is in contact with the casing of the mixed flow fan. 3. An energy-saving fan filter unit according to claim 1, characterized in that: the edge of the housing where the gas of the mixed-flow fan blows is streamlined. 4. An energy-saving fan filter unit according to claim 3, characterized in that: the edge of the housing where the gas of the mixed-flow fan blows is in the shape of a convex arc. 5 . The energy-saving fan filter unit according to claim 1 , wherein a bracket for installing a motor of the mixed-flow fan is provided in the cavity, and the bracket connects with the inner shell wall of the shell. 5 . 6 . The energy-saving fan filter unit according to claim 5 , wherein a motor hole for installing the motor of the mixed-flow fan is provided on the support, and the motor housing of the motor of the mixed-flow fan connects with the motor hole. 7 . 7. An energy-saving fan filter unit according to claim 1, wherein a sealing device is provided between the filter and the edge of the casing. 8. An energy-saving fan filter unit according to claim 7, characterized in that: the sealing device includes a sealing clamp groove, and the edge of the filter and the edge of the casing are arranged in the sealing clamp groove. 9. An energy-saving fan filter unit according to claim 8, characterized in that: the edge of the housing is provided with a protrusion, and the protrusion is provided between the inner groove wall of the sealing clamp groove and the filter.

Images