TWI634933B - Rotary aerosol capture device - Google Patents

Abstract

The invention includes an airflow passage portion, at least one drive portion, and at least one rotary porous filter portion. The air flow passage portion has an inlet end, an outlet end, and a working space. And a gas entrained with a plurality of suspended particles flows through the working space through the inlet end, and then flows out from the outlet end. The driving portion is provided with a driving structure for driving the rotary porous filter portion to rotate. The rotary porous filter portion is interposed between the inlet end and the outlet end. Thereby, the process of flowing the gas into and out of the working space passes through the rotary porous filter portion, and the contact of the suspended particles entrained by the gas impinges on the rotary porous filter portion to achieve the filtering device. This case has the advantages of effectively improving the capturing effect of suspended particles and simplifying the device.

Description

Rotary aerosol capture device

The invention relates to a catching device for a rotating suspended particle, in particular to a catching device which can effectively enhance the capturing effect of suspended particles and is simple to rotate the suspended particles.

Referring to Fig. 16, the conventional filtering device 70 can include an inlet portion 71, an outlet portion 72, and a stationary filter portion 73 (e.g., a stationary screen). The gas 91 to be filtered is introduced by the inlet portion 71, filtered by the fixed filter unit 73, and then exported by the outlet portion 72.

However, referring to the second comparison curve LB of Fig. 9 (representing the conventional fixed type filter), it is understood that the filtering effect achieved by the fixed filter unit 73 is less desirable.

In view of this, it is necessary to develop a technique that can solve the above disadvantages.

It is an object of the present invention to provide a capture device for a rotating aerosol, which has the advantages of effectively improving the capturing effect of suspended particles and being simple in installation. In particular, the problem to be solved by the present invention is that the filtration effect of the conventional fixed filter unit is not good.

The technical means for solving the above problems is to provide a rotating aerosol capture device, comprising: an air flow passage portion having an inlet end, an outlet end and a working space; the working space is between the inlet end and the Between the outlet ends, the gas flow passage portion is configured to supply a gas from the inlet end into the working space, the gas system flows out from the working space through the outlet end, and the gas system entrains a plurality of suspended particles; at least one driving portion has a driving structure for driving rotation; at least one rotating porous filter portion is coupled to the driving portion and driven to rotate; Thereby, when the gas flows into and out of the working space, passes through the at least one rotating porous filter portion, and the suspended particles entrained by the gas are in contact with the at least one rotating porous filter portion. Forming a filter capture structure; wherein: the drive portion and the rotary porous filter portion are coaxially opposed to each other; and wherein at least one of the rotary porous filter portions is rotated, and the other of the porous rotary filter portions The rotating porous filter portion has a first surface, a second surface, and a plurality of through passages penetrating the first surface and the second surface; each of the rotary porous filter portions is The porous foamed structure has a porosity of between 10 and 200 pores per inch.

The above objects and advantages of the present invention will be readily understood from the following detailed description of the preferred embodiments illustrated herein.

The invention will be described in detail in the following examples in conjunction with the drawings:

10‧‧‧Air passage section

11‧‧‧ entrance end

12‧‧‧export end

13‧‧‧Workspace

20‧‧‧ Drive Department

21‧‧‧Drive structure

22‧‧‧ shaft seat

30‧‧‧Rotary porous filter

31‧‧‧ first surface

32‧‧‧second surface

33‧‧‧through passage

40‧‧‧Rotating shell

91‧‧‧ gas

70‧‧‧Traditional filter unit

71‧‧‧ Entrance Department

72‧‧‧Exports Department

73‧‧‧Fixed filter

LA‧‧‧ first comparison curve

LB‧‧‧ second comparison curve

LC‧‧‧ third comparison curve

LD‧‧‧ fourth comparison curve

LE‧‧‧ fifth comparison curve

LF‧‧‧ sixth comparison curve

LG‧‧‧ seventh comparison curve

LH‧‧‧ eighth comparison curve

LI‧‧‧ ninth comparison curve

LJ‧‧‧ tenth comparison curve

LK‧‧‧ eleventh comparison curve

LL‧‧‧ twelfth comparison curve

LM‧‧‧13th comparison curve

LN‧‧‧ fourteenth comparison curve

LO‧‧‧ fifteenth comparison curve

LP‧‧‧ Sixteenth comparison curve

Figure 1 is a schematic view of a first embodiment of the present invention

Figure 2 is a schematic diagram of the main structure of Figure 1.

Figure 3 is a cross-sectional view of Figure 1.

Fig. 4 is a schematic view showing another application example of the rotary porous filter unit of Fig. 1

Figure 5 is a schematic view of a second embodiment of the present invention

Figure 6 is a cross-sectional view of Figure 5.

Fig. 7 is a schematic view showing another application example of the rotary porous filter unit of Fig. 5.

Figure 8 is a partially enlarged schematic view of the rotary porous filter portion of the present invention.

Figure 9 is a comparison chart of a conventional filter (direct filtration) and a rotary porous filter (rotary filter) of the present invention.

Figure 10 is a comparison chart of the filter capture of the rotating porous filter at different speeds.

Figure 11 is a comparison chart of filtration capture of rotary porous filter sections (nickel screens) of different thicknesses.

Figure 12 is a comparison of the filtration capture of the rotating porous filter with different porosity.

Figure 13 is a comparison of the filtration capture of the rotating porous filter with different surface wind speeds.

Figure 14 is a comparison chart of filter capture of gas particles with different concentrations of challenge particles.

Figure 15 is a comparison chart of the filter capture of the first embodiment of the present invention and the second embodiment.

Figure 16 is a schematic diagram of a conventional device

Referring to Figures 1, 2 and 3, the present invention is a rotating aerosol capture device comprising an airflow passage portion 10, at least one drive portion 20 and at least one rotary porous filter portion 30.

The airflow passage portion 10 has an inlet end 11, an outlet end 12 and a working space 13; the working space 13 is interposed between the inlet end 11 and the outlet end 12; A gas 91 flows from the inlet end 11 into the working space 13, and the gas 91 flows out of the working space 13 through the outlet end 12, and the gas 91 entrains a plurality of suspended particles.

The drive unit 20 has a drive structure 21 for driving rotation.

The at least one rotary type porous filter unit 30 is coupled to the drive unit 20 and is driven to rotate.

Thereby, when the gas 91 flows into and out of the working space 13, passes through the at least one rotating porous filter portion 30, and the suspended particles entrained by the gas 91 are in contact with the at least one rotating porous The filter unit 30 constitutes a filter capture structure.

In practice, the drive unit 20 has the following two embodiments:

[a] First embodiment (refer to FIGS. 2 and 3): The driving structure 21 may be a rod body, and the rotary porous filter portion 30 (single or plural, preferably a plurality of) is coaxially fixed to the rod Rod body.

The driving portion 20 can further include a shaft seat 22 (which can be disposed in or outside the working space 13) coaxial with the driving structure 21 for supporting the driving structure 21 to the inlet end 11 The end (taken in FIG. 3 as an example) can improve the stability of the driving structure 21 during rotation.

Referring to Fig. 4, the drive unit 20 and the rotary perforated filter unit 30 are provided with two sets of coaxially opposed devices (a plurality of additional arrays can be added according to actual needs).

At least one of the rotational directions of the rotary porous filter portion 30 is opposite to the rotation direction of the other porous rotary filter portion 30 (see FIGS. 4 and 7).

[b] The second embodiment (see FIGS. 5 and 6) differs from the first embodiment in that the drive structure 21 can be a belt.

The present invention further includes: a rotating outer casing 40, the rotating porous filter portion 30 (single or plural, preferably a plurality of) is coaxially disposed in the rotating outer casing 40, and the rotating outer casing 40 is transmitted through the shaft seat 22, The driving portion 20 is parallel to the rotating housing 40, and the driving structure 21 is used to drive the rotating housing 40. The rotating housing 40 is disposed between the inlet end 11 and the outlet end 12 of the airflow passage portion 10. (and the rotary perforated filter portion 30) is transmitted through the shaft seat 22 and rotates between the inlet end 11 and the outlet end 12.

Referring to FIG. 7, the driving unit 20 and the rotating casing 40 are provided with two sets of coaxially opposed devices (additional arrays can be added according to actual needs).

Referring to FIG. 8 , the rotary porous filter unit 30 has a first surface 31 , a second surface 32 , and a plurality of through passages 33 penetrating the first surface 31 and the second surface 32 .

The gas 91 passes through the plurality of through passages 33, and the entrained suspended particles are in contact with the first surface 31 (or the second surface 32 if rotated 180 degrees).

Each of the rotary porous filter portions 30 may be a porous foamed structure (as shown in Fig. 8).

The porosity of its preferred embodiment is between 10 and 200 pores per inch.

The rotary porous filter unit 30 is plural, and may be at least one of a porous structure of a sponge, a nickel mesh or other material, and a plurality of parallel hollow tubes.

Regarding the actual filtered data of the present invention, as shown in Fig. 9, direct filtering is performed in the case where the material (nickel mesh), thickness, porosity, and surface wind speed are the same (the second comparative curve LB represents the conventional fixed filter). The mesh size and the rotary filtration (the first comparative curve LA represents the rotary porous filter unit 30) have a cut-off particle diameter of about 1.36 μm and 1 μm at a collection efficiency of 50%. The smaller the intercept size, the smaller the particles that can be removed and the higher the efficiency (the experimental results show that the collection efficiency of the particles after the filter material is rotated).

Referring again to Figure 10, in the case of the same material (sponge), thickness, porosity, and surface wind speed, different speeds of 9000 rpm (third comparison curve LC), 2000 rpm (fourth comparison curve LD) and 0 rpm (fifth Comparison curve LE) The interception particle size at 50% of collection efficiency is about 1.06 μm, 1.5 μm and 1.7 μm, respectively, and the smaller the cut-off particle size, the smaller the removable particles are, and the higher the efficiency (the experimental results show that the faster the speed is The collection efficiency of the particles is good).

Please refer to Fig. 11. In the case of material (nickel screen), rotation speed, porosity, and surface wind speed, the different thicknesses of 68mm (sixth comparison curve LF) and 34mm (seventh comparison curve LG) are in collection efficiency 50. The intercepted particle size of % is about 1 μm and 1.2 μm, respectively, and the smaller the cut-off particle size, the smaller the removable particles are, and the higher the efficiency (the experimental results show that the thicker the thickness, the better the collection efficiency of the particles).

Referring to Figure 12, the nickel screen 94ppi (eighth comparison curve LH), sponge 80ppi (ninth comparison curve LI) and sponge 45ppi (tenth comparison) with different porosity, the same speed, thickness and surface wind speed. Curve LJ), the interception particle size at 50% of collection efficiency is about 1 μm, 1.06 μm and 1.26 μm, respectively, and the smaller the cut-off particle size, the smaller the removable particles are, and the higher the efficiency (the experimental results show that the porosity is denser) The collection efficiency of the particles is good).

Referring to Fig. 13, in the case of the same material (sponge), rotation speed, thickness, and porosity, the different wind speeds are 37.91 cm/s (the eleventh comparative curve LK) and 18.95 cm/s (the twelfth comparison curve LL). In collecting effects The intercepted particle size of 50% is about 0.89μm and 1.06μm, respectively. The smaller the intercepted particle size, the smaller the removable particles and the higher the efficiency (the experimental results show that the higher the surface wind speed, the better the collection efficiency of the particles).

Referring to Figure 14, in the case of the same material (sponge), rotation speed, thickness, porosity, and surface wind speed, the gas enthalpy with different concentrations of challenge particles 200#/cm ³ (13th comparison curve LM) and 100#/ Cm ³ (fourteenth comparative curve LN), the intercepted particle diameters at the collection efficiency of 50% are about 0.85 μm and 1.06 μm, respectively, and the smaller the cut-off particle size, the smaller the removable particles are, and the higher the efficiency (the experimental results show The higher the concentration of the challenge particles, the higher the collision probability and the better the collection efficiency of the particles.

Referring again to Fig. 15, in the case where the rotational speed, thickness, porosity, and surface wind speed are the same, the second embodiment (fifteenth comparative curve LO) shown in Fig. 5 of the present invention is shown in Fig. 1. In the first embodiment (sixteenth comparative curve LP), the intercepting particle diameters at the collection efficiency of 50% are each 1.5 μm and 2 μm, and the smaller the cut-off particle diameter, the smaller the removable particles are, and the efficiency is higher (experimental results) It is shown that the second embodiment has a good collection efficiency for the particles).

The advantages and functions of the present invention are as follows:

[1] can effectively improve the capture effect of aerosols. From the experimental data, it is understood that the rotary porous filter portion of the present invention can improve the effect of causing the suspended particles to be caught by contact with each other during the rotation. Therefore, the effect of capturing suspended particles can be effectively improved.

[2] The device is simple. The invention only provides a rotary porous filter portion that communicates with the airflow passage portion and is driven by the driving structure of the driving portion, thereby improving the filtering effect. All are well known devices and do not need to be developed separately. Therefore, the device is simple.

The present invention has been described in detail with reference to the preferred embodiments of the present invention, without departing from the spirit and scope of the invention.

Claims (4)

A rotating aerosol capture device includes: an air flow passage portion having an inlet end, an outlet end, and a working space; the working space is between the inlet end and the outlet end; the air flow passage The system supplies a gas from the inlet end into the working space, the gas system flows out from the working space through the outlet end, and the gas system entrains a plurality of suspended particles; at least one driving portion has a driving structure for driving Rotating; at least one rotating porous filter portion is coupled to and driven by the driving portion; thereby, when the gas flows into and out of the working space, passes through the at least one rotary porous filter a portion of the suspended particles impinging on the gas impinging on the at least one rotating porous filter portion to form a filter capture structure; wherein: the drive portion and the rotary porous filter portion are coaxially disposed opposite each other; And at least one of the rotating porous filter portions has a rotation direction opposite to a rotation direction of the other porous rotary filter portion; the rotary porous filter portion Having a first surface, a second surface, and a plurality of through passages penetrating the first surface and the second surface; each of the rotary porous filter portions is a porous foam structure, and the porosity is between 10 to 200 holes per inch. The apparatus for capturing a rotating aerosol according to claim 1, wherein the driving structure is a rod body, and the rotating porous filter portion is coaxially fixed to the rod body; The driving portion further includes a shaft seat for supporting the driving structure, and the stability of the driving structure in rotation can be improved. The apparatus for capturing a rotating aerosol according to claim 1, wherein: the driving structure is a belt; the driving portion further includes a shaft seat; the rotating aerosol capturing device further comprises: a rotating shell The rotating porous filter portion is coaxially fixed in the rotating outer casing, and the rotating outer casing is disposed between the inlet end and the outlet end of the air flow passage portion through the shaft seat, and the driving portion and the rotating outer casing are mutually In parallel, the driving structure is configured to drive the rotating outer casing, and the rotating outer casing and the rotary porous filtering portion are transmitted through the shaft seat to rotate between the inlet end and the outlet end. The apparatus for capturing a rotating suspended particulate according to claim 1, wherein the rotary porous filter portion is plural; and the rotary porous filter portion is at least one of a sponge and a nickel mesh.