TWM459903U - Filter cartridge containing hollow fiber membrane - Google Patents

Description

Filter element with hollow fiber membrane

The present invention relates to a filter element, and more particularly to a filter element for filtering impurities in a fluid, and the filter medium comprises a hollow fiber membrane.

The filter element is an item specially used for filtering impurities in the fluid. In order to produce a better filtering effect, the new patent No. M380829, the new patent No. M390172, and the invention patent of CN102000509A of the Chinese mainland disclose the filter structure with hollow fiber membrane. Since the hollow fiber membrane is a tubular thin wire having numerous fine pores having a pore diameter of only 2 to 0.001 μm, it can filter most bacteria, mold spores, particulate impurities, and red rust and dirt caused by rust of water pipes. Etc., so hollow fiber membranes are often used with other filter media of different functions to achieve better filtration.

In the above-mentioned known patents, the new patent No. M380829 and the new patent No. M390172 are assembled in a hollow fiber membrane in the direction of a fluid flow, and a plurality of hollow fiber membranes are assembled in a bundle. Inside the housing, the fluid passes along the length of the hollow fiber membranes, while the Chinese mainland publication number CN102000509A invents the patent, which is to bend the hollow fiber membrane into a U-shape, and the fluid is basically along the hollow fiber. The length of the reticular film passes. Although the foregoing patents can utilize the characteristics of a plurality of fine pores of the hollow fiber membrane, effectively filtering impurities, bacteria and the like in the fluid, but the fluid flows substantially straight along the longitudinal direction of the hollow fiber membrane, The area of filtration is small. In addition, although the hollow fiber membrane of the Chinese Patent Publication No. CN102000509A has a turning portion, the fluid moves from the outside to the hollow pipe when passing through the hollow fiber membranes, and the circulation method is not only easy to cause the membrane wall. The blockage also reduces the water seepage.

The object of the present invention is to provide a filter element having a hollow fiber membrane which has a better filtration effect and can generate a large osmotic flow.

The filter cartridge of the present invention comprises: a housing including a first filter chamber, a water inlet and a water outlet, and the filter cartridge further includes a first filter unit installed in the first filter chamber. The first filter unit comprises a plurality of hollow fiber membranes mounted in a spirally wound manner in a first filter chamber of the housing, each hollow fiber membrane having a membrane wall defining a hollow passage, the hollow passage having a An inlet end for fluid entry and a closed end opposite the inlet end.

The utility model has the beneficial effects that: the hollow fiber membranes are spirally wound in the first filtering chamber, and one side of the hollow passage is closed, in addition to increasing the filtering area, The hollow fiber membranes are passed through the inside to the outside to generate a large osmotic flow.

1‧‧‧Shell

101‧‧‧ main cylinder

102‧‧‧ cover

103‧‧‧ sleeve

11‧‧‧ bottom wall

12‧‧‧ outer ring wall

13‧‧‧ top wall

14‧‧‧ Inner Ring Wall

15‧‧‧First filter room

16‧‧‧Second filter room

17‧‧‧ Inlet

18‧‧‧Water outlet

19‧‧‧Perforation

2‧‧‧First filter unit

21‧‧‧First mesh plate

22‧‧‧Diversion Network

23‧‧‧ hollow fiber membrane

231‧‧‧ hollow channel

232‧‧‧membrane wall

233‧‧‧ entrance end

234‧‧‧closed end

3‧‧‧Second filter unit

31‧‧‧Second mesh plate

32‧‧‧ Filter media

Other features and effects of the present invention will be apparent from the following description of the drawings. FIG. 1 is an exploded perspective view of a preferred embodiment of the present invention; FIG. 2 is a preferred embodiment of the present invention. Figure 3 is an incomplete cross-sectional view of one of the preferred embodiments, showing one hollow fiber membrane of the filter element; and Figure 4 is a combined cross-sectional view similar to Figure 2 illustrating the state of fluid passage through the filter element.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same reference numerals.

Referring to Figures 1, 2 and 3, a preferred embodiment of the filter cartridge of the present invention comprises: a housing 1 and a first filter unit 2 and a second filter unit 3 mounted inside the housing 1, wherein The first filter unit 2 surrounds the outer periphery of the second filter unit 3.

In this embodiment, the housing 1 is basically composed of a main cylinder 101, a cover 102 screwed onto one of the openings of the main cylinder 101, and a frame between the main cylinder 101 and the cover 102. The sleeve 103 is composed of. After assembly, the housing 1 includes a circular bottom wall 11 , an outer annular wall 12 surrounding the bottom wall 11 and projecting upwardly, a top wall 13 spaced parallel to the bottom wall 11 , and a pedestal at the bottom An inner ring wall 14 between the wall 11 and the top wall 13, a first filter chamber 15 interposed between the inner ring wall 14 and the outer ring wall 12, and a first defined by the inner ring wall 14. Two filter chambers 16, one disposed on the top wall 13 and introducing fluid into the second filter chamber 16 a water inlet 17, a water outlet 18 disposed on the outer ring wall 12 and guiding the fluid, and a plurality of water outlets 18 disposed on the inner ring wall 14 and communicating with the first filter chamber 15 and the second filter chamber 16 Perforation 19. Wherein, the first filter chamber 15 surrounds the outer periphery of the second filter chamber 16, and the perforations 19 are adjacent to the bottom wall 11. That is, the inner ring wall 14 of the present embodiment is equivalent to the sleeve 103, and the top wall 13 is equivalent to the cover 102.

In this embodiment, the first filter unit 2 is mounted in the first filter chamber 15 of the housing 1, and includes a first mesh plate 21 which is hollow and is fitted around the outer ring wall 14 of the housing 1. And a plurality of flow-guiding nets 22 annularly and inner and outer spaced around the center of the casing 1, and a plurality of spirally wound hollow fiber membranes 23. The height of the first mesh plate 21 is higher than the top edges of the holes 19 .

The hollow fiber membranes 23 of the present embodiment each have a membrane wall 232 defining a hollow passage 231 having an inlet end 233 adjacent to the first mesh orifice 21 after installation, and a inlet end 233 is located at the closed end 234 on the opposite side. The membrane wall 232 of the hollow fiber membrane 23 is covered with fine pores. Since the hollow fiber membranes 23 have fine pores as known techniques, they will not be described again. Further, the space surrounded by the hollow fiber membranes 23 of the present embodiment is gradually enlarged from the inside to the outside, that is, one of the hollow fiber membranes 23 surrounds the inner ring wall 14 of the casing 1, and the hollow fiber membrane 23 The remaining plurality of strips respectively surround the outer side of one of the flow guiding nets 22, and the shells 1 can be the same by the flow guiding nets 22 and the equally spaced and spirally wound hollow fiber membranes 23. A filter chamber 15 is filled.

In this embodiment, the second filter unit 3 is mounted on the housing 1 The second filter chamber 16 includes two upper and lower second mesh plates 31, and a granular filter material 32 loaded between the second mesh plates 31. In the preferred embodiment, The filter material 32 is a mixture of activated carbon and ion exchange resin, but the selection of materials is not limited thereto. The second mesh plate 31 located below is also mounted at a higher height than the perforations 19.

Referring to Figures 3 and 4, when the filter element of the embodiment is in use, fluid enters the second filter chamber 16 from the water inlet 17 of the housing 1, and the second mesh plate 31 passes through the second filter unit 3. And filtering of the filter medium 32, the odor in the fluid can be removed, and the water can be softened and purified, and the fluid flowing out of the second filter unit 3 can flow into the first filter chamber 15 via the perforations 19. When the fluid passes through the first mesh plate 21 adjacent to the lower side, it will enter the hollow channel 231 of the hollow fiber membranes 23, and then flow upward along the spirally wound hollow fiber membranes 23, and then the hollow fibers are followed by After the film wall 232 of the film 23 passes through the hollow passage 231, it flows out to the water outlet 18 of the casing 1. Since the hollow fiber membranes 23 are wound in the first filtration chamber 15, the filtration area of the present embodiment is larger than that of the prior art when the volume of the first filtration chambers 15 is the same. In addition, in the process of filtering the fluid, the fluid enters the hollow channel 231 of the hollow fiber membranes 23 and then exits the membrane wall 232. Therefore, the embodiment is less likely to accumulate dirt during use, and Produces a large seepage flow.

It can be seen from the above description that the design of the filter element of the present invention is not only novel in structure, but also can change the manner in which the fluid passes through the hollow fiber membranes 23, and the hollow fiber membranes 23 are installed in the first filter chamber 15 in a spirally wound manner. Design, can increase the area of filtration, resulting in a large seepage flow, so The improvement of the aforementioned structure of the present invention is not only novel but also highly industrially usable.

However, the above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, that is, the simple equivalent changes and modifications made in accordance with the scope of the present patent application and the contents of the patent specification, All remain within the scope of this new patent.

1‧‧‧Shell

11‧‧‧ bottom wall

12‧‧‧ outer ring wall

13‧‧‧ top wall

14‧‧‧ Inner Ring Wall

15‧‧‧First filter room

16‧‧‧Second filter room

17‧‧‧ Inlet

18‧‧‧Water outlet

19‧‧‧Perforation

2‧‧‧First filter unit

21‧‧‧First mesh plate

22‧‧‧Diversion Network

23‧‧‧ hollow fiber membrane

231‧‧‧ hollow channel

232‧‧‧membrane wall

233‧‧‧ entrance end

234‧‧‧closed end

3‧‧‧Second filter unit

31‧‧‧Second mesh plate

32‧‧‧ Filter media

Claims (8)

A filter cartridge having a hollow fiber membrane for filtering fluid, and comprising: a housing including a first filter chamber, a water inlet for fluid to flow into the first filter chamber, and a fluid for flowing out of the first filter chamber And a first filter unit installed in the first filter chamber of the housing and including at least one hollow fiber membrane spirally wound around the first filter chamber, the hollow fiber membrane having a defined one The membrane wall of the hollow passage has an inlet end for fluid entry and a closed end on the opposite side of the inlet end. The filter element having a hollow fiber membrane according to claim 1, wherein the first filter medium unit comprises a plurality of hollow fiber membranes. The filter element having a hollow fiber membrane according to claim 2, wherein the housing further comprises a second filter chamber communicating with the water inlet, and at least one perforation communicating with the first filter chamber and the second filter chamber And the water outlet is in communication with the first filter chamber, and the first filter chamber surrounds the outer periphery of the second filter chamber; and the filter cartridge further comprises a second filter unit installed in the second filter chamber. The filter element having a hollow fiber membrane according to claim 3, wherein the first filter material unit further comprises a plurality of flow guiding nets separating two of the hollow fiber membranes. The filter element having a hollow fiber membrane according to claim 4, wherein the housing further comprises a bottom wall, a top wall spaced apart from the bottom wall and provided for the water inlet, a connection to the bottom wall, and the Between the top walls An outer ring wall provided by the water outlet, and an inner ring wall connected between the bottom wall and the top wall and provided with the perforation, the inner ring wall partitioning the first filter chamber and the second filter chamber. The filter element having a hollow fiber membrane according to claim 5, wherein the perforation of the housing is adjacent to the bottom wall, and the first filter unit further comprises a gap between the inner ring wall and the outer ring wall. a first mesh panel of the bottom wall, the first mesh panel being higher than the perforations. The filter element having a hollow fiber membrane according to claim 6, wherein the second filter unit comprises two second mesh plates spaced apart from each other and higher than the perforations of the housing, and one loaded on the second mesh The filter material between the orifice plates. The filter element having a hollow fiber membrane according to claim 7, wherein the filter medium of the second filter unit is a mixture of activated carbon and ion exchange resin.