KR101606593B1 - Filter element assembly - Google Patents

Abstract

The filter element assembly according to the present invention comprises a first filter element provided with a first opening portion at an upper portion thereof, a first hollow portion communicating with the first opening portion, a first filter element provided with a filter portion at a side surface thereof, And a second hollow portion provided in the first hollow portion and provided with a second open portion at a lower portion thereof and communicating with the second open portion, wherein a filter portion is provided on a side surface of the second hollow portion, Wherein a portion of the fluid introduced into the first hollow portion through the first opening passes through a side portion of the first filter element and is discharged to the outside, and a remaining portion of the fluid introduced into the first hollow portion Is sequentially passed through the side surface portion of the second filter element and the second hollow portion and the second opening portion and is discharged to the outside so that the flow rate can be increased without increasing the size of the filter element assembly, The power loss of the driving source can be reduced.

Filter, filtration capacity, miniaturization, energy saving

Description

[0001] FILTER ELEMENT ASSEMBLY [0002]

The present invention relates to a filter element assembly, and more particularly to a filter element assembly capable of increasing filtration capacity by increasing the filtration surface area without increasing the size.

Filter assemblies have been used to filter foreign matter from fluids such as gases and liquids in a wide range of industries, such as vehicles and power plants. The filter assembly includes a housing and a filter element assembly disposed within the housing. The fluid introduced into the housing passes through the filter element assembly to remove foreign matter, and the fluid from which the foreign matter is removed is discharged to the outside of the housing. One example of such a filter element assembly is shown in Figs. 1A and 1B.

1a and 1b, a typical filter element assembly comprises a cylindrical filter element 1 provided with an opening 1a at the top, a filter element 1 provided at the lower end of the filter element 1, And an end cap 2 for sealing the lower portion. In this filter element assembly, the fluid to be filtered through the opening portion 1a flows into the interior of the filter element 1, and the foreign fluid is removed while passing through the side surface of the filter element 1.

The filtration capacity of this filter element assembly is proportional to the surface area of the filter element 1. Therefore, in order for the filtration capacity of the fluid to increase, the radius R of the filter element 1 must be increased. However, when the radius R of the filter element 1 is increased, the size of the filter element assembly increases, and a large mounting space must be ensured.

As a method for increasing the filtration capacity of the fluid, there is a method of increasing the flow rate of the fluid flowing into the filter element assembly by increasing the driving force of a driving source such as an engine or a blower. However, have.

SUMMARY OF THE INVENTION The present invention has been made in view of the foregoing points, and it is an object of the present invention to provide a filter element which can increase the surface area of a filter element without increasing the size of the filter element assembly, An object of the present invention is to provide an element assembly.

Another object of the present invention is to provide a filter element assembly having a structure advantageous for downsizing.

According to an aspect of the present invention, there is provided a filter element assembly including a first opening portion provided at an upper portion thereof, a first hollow portion communicating with the first opening portion, A first filter element having a closed bottom; And a second hollow portion provided in the first hollow portion and provided with a second open portion at a lower portion thereof and communicating with the second open portion, wherein a filter portion is provided on a side surface of the second hollow portion, Wherein a portion of the fluid introduced into the first hollow portion through the first opening passes through a side portion of the first filter element and is discharged to the outside, and a remaining portion of the fluid introduced into the first hollow portion Is sequentially passed through the side surface portion of the second filter element, the second hollow portion and the second opening portion and is discharged to the outside so that the fluid is filtered in parallel by the first filter element and the second filter element, And a filter unit is provided on the outer side surface.

According to an embodiment of the present invention, the second filter element has a shape in which the cross-sectional area gradually increases toward the bottom.

According to another embodiment of the present invention, the filter element assembly is disposed in the second hollow portion, the third hollow portion is provided on the upper portion, the third hollow portion communicated with the third open portion is provided in the upper portion, Wherein at least a portion of the fluid introduced into the third hollow through the third opening passes sequentially through the side portion of the third filter element and the second hollow and the second opening, So that the fluid is filtered in parallel by the first filter element, the second filter element, and the third filter element.
According to another embodiment of the present invention, the filter element assembly is disposed in the third hollow portion, the fourth hollow portion is provided at the lower portion, the fourth hollow portion communicated with the fourth open portion is provided, Wherein a portion of the fluid introduced into the third hollow through the third opening passes through the side portion of the third filter element and the second hollow and the second opening sequentially And the remaining portion of the fluid introduced into the third hollow portion passes through the side portion of the fourth filter element, the fourth hollow portion and the fourth open portion and is discharged to the outside, Is filtered in parallel by the second filter element, the third filter element and the fourth filter element.

delete

According to another embodiment of the present invention, a guide member for reducing the flow resistance of the fluid flowing into the upper end of the second filter element is provided, and the cross-sectional area of the guide member gradually increases toward the lower portion .

According to the above-described problem, the second filter element is disposed in the first hollow portion of the first filter element, and the fluid introduced into the first hollow portion is filtered while passing through the first filter element and the second filter element, The filter element surface area can be increased without increasing the size of the filter element assembly, thereby increasing the flow rate of the fluid and increasing the filtration capacity of the fluid.

In other words, if the filtration capacity of the fluid is kept the same as before, the size of the filter element assembly is reduced.

Also, if the flow rate of the fluid is kept the same as before, the flow rate of the fluid per unit area of the filter element is reduced, thereby extending the life of the filter element assembly.

Further, when the flow rate of the fluid is kept the same as the conventional one, the load applied to the drive source for flowing the fluid is reduced, thereby reducing the power loss.

On the other hand, since the cross-sectional area of the second filter element is gradually increased toward the bottom, the force of the fluid passing through the filter element is formed not only by the pressure difference between the inside and the outside of the filter element assembly, So that the power loss of the driving source is further reduced.

In particular, a guide member is provided on the upper portion of the second filter element to minimize the flow resistance of the fluid, thereby minimizing the power loss of the drive source.

Further, the third filter element is disposed in the second hollow portion and the fourth filter element is disposed in the third hollow portion, so that the filtration capacity is further reduced and the size of the filter element assembly can be further reduced.

Hereinafter, a filter element assembly according to an embodiment of the present invention will be described in detail.

2 to 4 are schematic views of a filter element assembly according to a first embodiment of the present invention. 2 to 4, a filter element assembly according to a first embodiment of the present invention includes a first filter element 10, a first end cap 11, a second filter element 12, (13).

The first filter element 10 has a first opening 10a formed therein and a first hollow portion 10b communicating with the first opening 10a is formed in the first filter element 10, Is sealed by the first end cap (11). Therefore, the fluid introduced into the first hollow portion 10b through the first opening portion 10a passes through the side surface of the first filter element 10 without passing through the lower portion of the first filter element 10 do. The first filter element 10 is manufactured by molding a nonwoven fabric into a corrugated form in order to increase the filtration surface area. However, unlike the present embodiment, the first filter element 10 may be made of a woven fabric, a membrane, a stainless steel, or the like depending on the state of the fluid to be filtered (gas state or liquid state) Or the like, and a paper form using glass fiber or cellulose. The first filter element 10 may be made of polypropylene (PP), polyethylene (PE), polyester (PET), polyvinylidene fluoride (PVDF) (PT), polyacrylonitrile (PAN), polyamide (Nylon), polyethersulfone (PES), polysulfone (PS), polybutylene terephthalate Polybutyleneterephtalate (PBT), cellulose, glass fiber, and stainless steel may be used.

The first end cap 11 hermetically seals the lower portion of the first filter element 10 and keeps the first and second filter elements 10 and 12 in a constant shape. The urethane, polypropylene Such as polypropylene (PP), polyethylene (PE), polybutylene terephthalate (PBT), or fluorocarbon resin (PFA) The first end cap 11 is fixed to the first filter element 10 by solidifying the melt while immersing the bottom of the first and second filter elements 10 and 12 into the molten melt of the materials. . The first end cap 11 is formed in an annular shape because the second opening 12a of the second filter element 12 must be opened to the outside.

The second filter element 12 is disposed coaxially with the first filter element 10 in the first hollow portion 10b of the first filter element 10. [ The upper part of the second filter element 12 is sealed by the second end cap 13 and a second hollow part 12b is formed therein and the second hollow part 12b A second opening 12a is formed. Since the second filter element 12 can be made of the same material and the same shape as the first filter element 10, detailed description of the material and shape will be omitted.

The second end cap 13 is for retaining the shape of the second filter element 12 and sealing the upper part of the second filter element 12 and is made of the same material as the first end cap 11 And can be fixed to the top of the second filter element 12 in the same way.

Although the first and second filter elements 10 and 12 are formed in a cylindrical shape in this embodiment, they can be modified into various shapes depending on the application.

Hereinafter, the filtering process of the filter element assembly having the above-described structure will be described in detail.

First, when a fluid to be filtered flows by driving of a driving source (not shown) such as an engine, a pump, or a blower, the flowing fluid flows into the interior of the filter housing not shown through an unillustrated inlet pipe. The fluid introduced into the filter housing flows into the first hollow portion 10b through the first opening portion 10a of the first filter element 10. [ A part of the fluid introduced into the first hollow portion 10b is discharged to the outside through the first filter element 10 and the remaining portion of the fluid introduced into the first hollow portion 10b is discharged through the second filter element 12, To the second hollow portion 12b. And the fluid introduced into the second hollow portion 12b is discharged to the outside through the second opening portion 12a. The fluid discharged to the outside through the first filter element (10) and the second opening (12a) is moved to a necessary place through a discharge pipe connected to the filter housing.

Thus, in this embodiment the fluid is filtered in parallel by the first filter element 10 as well as by the second filter element 12. [ That is, the filtration surface area and the passage area of the fluid are increased as compared with the conventional filter element assembly having the same size, and the filtration capacity is increased and the flow rate of the fluid is increased.

On the other hand, when the fluid having the same flow rate as that of the conventional product is filtered, the driving force for flowing the fluid is reduced, so that the power loss for the fluid flow is reduced, and the unit of the first and second filter elements 10, The flow rate passing through the surface is reduced, and the service life of the first and second filter elements 10 and 12 is prolonged. In addition, when the filtration capacity is fixed to the same as that of the conventional product, the size of the filter element assembly can be reduced, and the space for mounting the filter assembly can be reduced.

5 and 6 are views schematically showing a drawing according to a second embodiment of the present invention.

5 and 6, the second embodiment of the present invention is different from the first embodiment in that the second filter element 22 has a truncated cone shape, and the other structures and shapes are the same as those of the first embodiment same. Thus, by forming the second filter element 22 in the shape of a truncated cone, it is possible to increase the size of the second opening 22a provided below the second filter element 22, 22 and the fluid flowing into the second hollow portion 22b can be smoothly discharged to the outside. That is, the resistance against the fluid flow can be minimized, and the load applied to the driving source for driving the fluid can be minimized. Therefore, the power loss can be further reduced.

In addition, the second filter element 22 has a truncated cone shape so that a portion of the fluid entering through the first opening 20a can pass through the second filter element 22 in the incoming flow direction. That is, the pressure difference between the first hollow portion 20b and the second hollow portion 22b of the first filter element 20 causes the fluid P1 to pass through the second filter element 22 and the momentum The fluid F1 passing through the second filter element 22 coexists. That is, the driving force of the fluid passing through the second filter element 22 includes the pressure difference as well as the momentum of the fluid, thereby further reducing the power loss of the driving source for driving the fluid.

In this embodiment, the second filter element 22 has a truncated cone shape. However, unlike the present embodiment, the second filter element 22 can be modified into various shapes as long as the transverse sectional area increases gradually .

7 and 8 are schematic views of a filter element assembly according to a third embodiment of the present invention.

7 and 8, the third embodiment of the present invention further includes a third filter element 34 and the second end cap 33 is formed annularly by the third opening 34a Which is different from the first embodiment.

The third filter element 34 is disposed in the second hollow portion 32b of the second filter element 32 and has a third opening 34a formed thereon and a third end cap 35 are installed. In addition, a third hollow portion 34b is formed in the third filter element 34 so as to communicate with the third open portion 34a. Other than the configuration described above, the same as the first embodiment of the present invention, and thus detailed description of each configuration will be omitted.

Hereinafter, the filtering process of the filter element assembly according to the third embodiment of the present invention will be described.

First, the fluid is driven by the driving source, and the fluid flows into the first hollow portion 30b and the third hollow portion 34b through the first opening portion 30a and the third opening portion 34a, respectively. A part of the fluid introduced into the first hollow portion 30b is discharged to the outside through the side surface of the first filter element 30 and the remaining portion of the fluid introduced into the first hollow portion 30b flows into the second filter element 32 Through the second hollow portion 32b and the second opening portion 32a, and is discharged to the outside. On the other hand, the fluid introduced into the third hollow portion 34b flows into the second hollow portion 32b through the side surface of the third filter element 34, and the fluid introduced into the second hollow portion 32b flows into the second hollow portion 32b. 2 opening portion 32a. As such, the addition of the third filter element 34 further increases the filtration surface area to further increase the filtration capacity, further increase the flow rate, and further reduce the power loss of the fluid drive source. Further, the size of the filter element assembly can be further reduced.

9 is a schematic view of a filter element assembly according to a fourth embodiment of the present invention.

Referring to Fig. 9, the fourth embodiment of the present invention differs from the third embodiment in that it further includes a fourth filter element 46 disposed in the third hollow portion 44b. It is also different from the third embodiment in that the third end cap 45 has an annular shape due to the fourth opening 46a of the fourth filter element 46. [ The upper end of the fourth filter element 46 is sealed by the fourth end cap 47 and the fourth hollow portion 46b is provided inside the fourth filter element 46. The fourth hollow portion 46b A fourth opening 46a is formed.

Hereinafter, the filtering process of the filter element assembly according to the fourth embodiment of the present invention will be described.

The fluid drive source is driven and the flowing fluid flows into the first hollow portion 40b and the third hollow portion 44b through the first opening portion 40a and the third opening portion 44a, respectively.

A part of the fluid introduced into the first hollow portion 40b is discharged to the outside through the side surface of the first filter element 40 and the remaining portion of the fluid introduced into the first hollow portion 40b is discharged to the outside through the second filter element 40. [ Flows into the second hollow portion 42b through the side surface of the second opening portion 42 and is discharged to the outside through the second opening portion 42a.

Meanwhile, a part of the fluid introduced into the third hollow portion 44b flows into the second hollow portion 42b through the side surface of the third filter element 44 and is discharged to the outside through the second opening portion 42a And the remaining portion of the fluid introduced into the third hollow portion 44b flows into the fourth hollow portion 46b through the fourth filter element 46 and is discharged to the outside through the fourth opening portion 46a.

As such, by adding the fourth filter element 46, it is possible to further increase the filtration surface area, thereby further increasing the filtration capacity, further increasing the flow rate, and further reducing the power loss of the fluid drive source. Further, the size of the filter element assembly can be further reduced.

In this embodiment, a filter element assembly having four filter elements is illustrated. However, the number of filter elements may be five or more depending on the thickness of the filter element and the size of each filter assembly.

10 and 11 are schematic views of a filter element assembly according to a fifth embodiment of the present invention.

10 and 11, the fifth embodiment of the present invention differs from the first embodiment in that a guide member 57 is provided on the upper portion of the second filter element 52. In the first embodiment of the present invention, the upper end of the second filter element 12 is provided with a flat second end cap 13. However, the upper surface of the second end cap 13 is disposed perpendicular to the flowing direction of the fluid to increase the flow resistance of the fluid. In consideration of this point, in the fifth embodiment, a conical guide member 57 is provided on the upper portion of the second filter element 52 to minimize the flow resistance of the inflowing fluid. By minimizing the flow resistance as described above, the load applied to the driving source for driving the fluid can be further reduced, so that the power loss can be minimized. The filter element assembly according to the fifth embodiment is the same as that of the first embodiment except for the above-mentioned description, so a detailed description thereof will be omitted.

In the present embodiment, the guide member 57 is a conical shape. However, unlike the present embodiment, the guide member 57 may be modified into various shapes such as a triangular pyramid, a quadrangular pyramid, or the like as its sectional area progressively increases toward the lower side.

Figures 1a and 1b, respectively, are a perspective view and a partially cutaway perspective view schematically illustrating a typical filter element assembly,

2 is a perspective view of a filter element assembly according to a first embodiment of the present invention,

Figure 3 is a bottom perspective view of the filter element assembly shown in Figure 2,

Fig. 4 is a partially cutaway perspective view taken along the line IV-IV in Fig. 2,

5 is a perspective view of a filter element assembly according to a second embodiment of the present invention,

FIG. 6 is a partially cutaway perspective view taken along the line VI-VI in FIG. 5,

7 is a perspective view of a filter element assembly according to a third embodiment of the present invention,

Fig. 8 is a partially cutaway perspective view taken along line VIII-VIII of Fig. 7,

9 is a partially cutaway perspective view of a filter element assembly according to a fourth embodiment of the present invention,

10 is a perspective view of a filter element assembly according to a fifth embodiment of the present invention,

11 is a partially cutaway perspective view taken along the line XI-XI in FIG.

DESCRIPTION OF THE REFERENCE NUMERALS OF THE DRAWINGS

10, 20, 30, 40; The first filter element

10a, 20a, 30a, 40a; The first opening

10b, 20b, 30b, 40b; The first hollow portion

12, 22, 32, 42, 52; The second filter element

12a, 22a, 32a, 42a; The second opening

12b, 22b, 32b, 42b; The second hollow portion

34, 44; Third filter element 34a, 44a; The third opening

34b, 44b; A third hollow portion 46; The fourth filter element

46a; A fourth opening 46b; The fourth hollow portion

Claims (8)

A first filter element provided with a first open portion at an upper portion thereof, a first hollow portion communicating with the first open portion, a filter portion provided at a side surface thereof, and a lower portion sealed; And A second hollow portion provided in the first hollow portion and provided with a second open portion at a lower portion thereof and communicating with the second open portion, a filter portion provided at a side surface thereof, / RTI > Wherein a portion of the fluid introduced into the first hollow portion through the first opening passes through a side portion of the first filter element and is discharged to the outside, and a remaining portion of the fluid introduced into the first hollow portion passes through the second filter The second hollow portion and the second opening portion, and is discharged to the outside Fluid is filtered in parallel by the first filter element and the second filter element, And a filter unit is provided on an outermost side surface of the filter element assembly. The method according to claim 1, Wherein the second filter element has a shape in which the cross-sectional area progressively increases toward the bottom. The method according to claim 1, A third filter element disposed in the second hollow portion and provided with a third open portion at an upper portion thereof, a third hollow portion communicating with the third open portion, and a lower portion sealed, At least a part of the fluid introduced into the third hollow part through the third opening part sequentially passes through the side part of the third filter element, the second hollow part and the second opening part and is discharged to the outside Fluid is filtered in parallel by the first filter element, the second filter element, and the third filter element And the filter element assembly. The method of claim 3, A fourth filter element disposed in the third hollow portion and provided with a fourth open portion at a lower portion thereof, a fourth hollow portion communicating with the fourth open portion, and an upper portion sealed, A part of the fluid flowing into the third hollow part through the third opening part sequentially passes through the side part of the third filter element and the second hollow part and the second opening part to be discharged to the outside, The remaining part of the fluid that has passed through the fourth hollow portion and the fourth opening is discharged to the outside Wherein the fluid is filtered in parallel by the first filter element, the second filter element, the third filter element and the third filter element. The method according to claim 1, Wherein a guide member is provided at an upper end of the second filter element to reduce the flow resistance of the inflow fluid. 6. The method of claim 5, Wherein the guide member has a shape in which the cross-sectional area gradually increases toward the bottom. The method according to claim 1, At least one of the first and second filter elements may be formed of at least one of polypropylene (PP), polyethylene (PE), polyester (PET), polyvinylidene fluoride (PVDF) (PT), polyacrylonitrile (PAN), polyamide (Nylon), polyethersulfone (PES), polysulfone (PS), polybutylene terephthalate Polybutylene terephthalate (PBT), cellulose, glass fiber, and stainless steel. A first filter element provided with a first open portion at an upper portion thereof, a first hollow portion communicated with the first open portion, a first end cap provided with a filter portion at a side surface thereof and a second open portion at a lower portion thereof, ; And A second hollow portion communicating with the second opening portion is provided, and a filter portion is provided on a side surface of the second hollow portion, and an upper portion is provided on the second end portion, And a second filter element sealed by a cap, Wherein a portion of the fluid introduced into the first hollow portion through the first opening passes through a side portion of the first filter element and is discharged to the outside, and a remaining portion of the fluid introduced into the first hollow portion passes through the second filter The second hollow portion and the second opening portion, and is discharged to the outside Fluid is filtered in parallel by the first filter element and the second filter element, And a filter unit is provided on an outermost side surface of the filter element assembly.

Images