TWI487560B - A filter with a combined filter - Google Patents

Description

Filter with combined filter

The present invention relates to a filter, and more particularly to a filter having a combined filter media.

The traditional filter element is made of functional materials such as activated carbon, resin, medical stone, ceramic or reverse osmosis membrane to achieve different filtering effects. Because of the single function of this single material filter, to ensure The final outflow of water is clean, and it is necessary to use a plurality of interconnected shells to accommodate filter elements of different functions to form a multi-cylinder filter, thereby achieving multiple filtration effects. However, such multi-cylinder filters have the disadvantages of being bulky, costly, and difficult to install and maintain. Therefore, the design of a single-cylinder filter using a composite filter element has gradually emerged.

Composite material filter, mainly in one-piece type and combined card type. One-piece composite material filter, such as the composite melt-blown filter disclosed in the TW 442393 patent and the TW 485841 patent, respectively, need to add a plurality of sets of melt nozzles respectively responsible for molding different functional filter layers in the process, which has complicated process , high cost and other shortcomings. In order to reduce the complexity of the process, the TW M365785 patent case discloses a single meltblown composite material filter element, which directly adds the activated carbon particles to the melt, granulates and then performs a melt blow molding. However, since the activated carbon particles are evenly dispersed in the filter element, it may be carried by the water flow in the filter process to blacken the water, affecting the filtered water quality, and still have room for improvement.

The composite card type composite material filter element, as disclosed in the TW 527954 patent case, has a design in which the inlet and outlet are arranged at the same barrel end, except that the cassette type design needs to be replaced in the entire group when the filter element is replaced, which has the disadvantage of high use cost. The water flow may flow out of the hollow fiber membrane near the water outlet without the activated carbon layer, affecting the filtration quality.

Another type of composite cartridge filter, such as the CN200720195995.7 patent, discloses that although the multi-layer design improvement requires the replacement of the entire filter cartridge, only the activated carbon filter and the PP meltblown filter are fixedly coupled to each other, but this design requires In addition, an activated carbon filter housing containing granular activated carbon is additionally disposed in the outermost casing, which increases the manufacturing cost. When the filter element is replaced, the activated carbon filter element and the PP melt-blown filter element must also be replaced at the same time, and the utility cost is still used. High disadvantages.

Accordingly, it is an object of the present invention to provide a filter having a combined filter material that reduces manufacturing and use costs.

Thus, the present invention has a filter of a combined filter material suitable for filtering a fluid and comprising a shell member, a filter element, and a functional filter. The casing comprises a hollow casing, a chamber located inside the casing, and a first opening and a second opening spaced apart from the casing and respectively communicating with the chamber.

The filter element is disposed on the housing and located in the chamber, and includes a first filter element, a second filter element, and a partition plate disposed between the first filter element and the second filter element, the first filter element has a porous hollow tubular shape and an inner peripheral surface thereof communicates with the first opening hole, The second filter element has a porous hollow tubular shape and an inner peripheral surface thereof communicates with the second opening.

The functional filter material is in the form of particles, and is placed in the chamber and located between the filter element and the housing.

Wherein, the fluid flows in from the first opening, passes through the first filter element and passes through the functional filter material, and then flows out through the second opening through the second filter element.

The utility model has the advantages that the filter element and the functional filter material are respectively assembled into the combined structure of the casing, so that the filter element itself does not need to adopt a composite material process, which can reduce the manufacturing cost and increase the yield, and When the maintenance is used, the filter element or the functional filter material can be separately replaced depending on the filtration state, thereby greatly reducing the use cost, and the functional filter material can select different filter particles according to requirements, and can also increase the variation of the product. After the fluid passes through the functional filter material, it finally flows out through the second opening through the second filter element, thereby further maintaining the filtration quality. In addition to reducing the manufacturing and use cost, the present invention has a wide product variation. Filter the quality of the effect.

1‧‧‧Shell

11‧‧‧Shell

111‧‧‧

112‧‧‧Shell cover

113‧‧‧Baffle

12‧‧ ‧ room

13‧‧‧First opening

14‧‧‧Second opening

2‧‧‧ filter element

21‧‧‧First filter

22‧‧‧Second filter

23‧‧‧ partition board

231‧‧‧ base wall

232‧‧‧through holes

3‧‧‧Functional filter media

Other features and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments of the accompanying drawings in which: Figure 1 is an illustration of a first preferred embodiment of a filter having a combined filter material of the present invention. Figure Figure 2 is a schematic view showing the use of the first preferred embodiment of the present invention; Figure 3 is an exploded view of the second preferred embodiment of the filter having the combined filter material of the present invention; Figure 4 is a second preferred embodiment of the second preferred embodiment A schematic view of use; and FIG. 5 is a cross-sectional view taken along line VV of FIG.

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 and 2, a first preferred embodiment of the filter having a combined filter material of the present invention is suitable for filtering a fluid (as indicated by the arrow in Figure 2) and comprises a shell member 1 and a filter member 2 And a functional filter material 3.

The housing member 1 includes a hollow housing 11 , a housing 12 located inside the housing 11 , and a first opening 13 and a second opening spaced apart from the housing 11 and respectively communicating with the housing 12 . Opening 14 .

The housing 11 has a barrel body 111 for receiving the filter element 2 and the functional filter medium 3, a cover 112 for covering the barrel 111, and a casing 112 and the cover 112. The functional filter medium 3 is limited to the annular baffle 113 in the barrel 111. The first opening 13 and the second opening 14 are respectively disposed on the barrel 111 and the cover 112.

The filter element 2 is disposed on the housing 11 and located in the chamber 12 and includes a first filter element 21, a second filter element 22, and a partition disposed between the first filter element 21 and the second filter element 22. Board 23.

The first filter element 21 has a porous hollow tubular shape and has an inner peripheral surface thereof. The second filter element 22 has a porous hollow tubular shape and the inner peripheral surface thereof communicates with the second opening 14 . In this embodiment, the first filter element 21 and the second filter element 22 are of equal length and respectively adopt polypropylene (PP) melt-blown filter elements, and are respectively pre-assembled and fixed on opposite end faces of the partition plate 23.

The functional filter medium 3 is in the form of particles and is placed in the chamber 12 and located between the filter element 2 and the housing 11. The functional filter medium 3 is selected from the group consisting of activated carbon, medical stone, ceramic powder, or a combination thereof.

In the present embodiment, the functional filter medium 3 is activated carbon, and can adsorb components such as chlorine, odor, residual pesticides and the like which are harmful to the human body in the fluid, but it can be understood that it can also be changed according to different product requirements. A stone that can add minerals that are beneficial to the human body, a ceramic powder that has a bacteriostatic effect, or even a particle that mixes different filtration effects.

When assembling, the filter element 2 is first installed in the tubular body 111, and the functional filter medium 3 is filled into the space between the filter element 2 and the barrel 111, and after the baffle 113 is covered, The cover 112 is locked to the barrel 111.

In use, the fluid first flows in from the first opening 13 , passes through the first filter element 21 and passes through the functional filter medium 3 , and then flows out through the second opening 14 through the second filter element 22 . It is worth mentioning that, since the first filter element 21 and the second filter element 22 are equal in length, the shell member 1 can be used upside down after a period of use, so that the fluid flows in from the second opening 14 first. After passing through the second filter element 22 and passing through the functional filter medium 3, the first filter element 21 flows out through the first opening 13 to raise the first filter element. 21 and the utilization rate of the second filter element 22.

When the maintenance is required, the cover member 112 and the baffle 113 can be easily removed, and the filter element 2 and the functional filter medium 3 inside the barrel 111 can be conveniently inspected, and the filter element 2 can be replaced separately depending on the situation. The functional filter material 3.

Through the above composition, the functions and advantages of the filter having the combined filter material of the present invention can be summarized as follows:

1. The combined structure of the filter element 2 and the functional filter material 3 respectively assembled in the casing 1 makes the filter element 2 itself not need to adopt a composite material, and the process is relatively simple, and the functional filter material 3 is added. The use of granular raw materials can be simply replaced by filling, which can further reduce the cost, and thus has the advantages of reducing the manufacturing cost.

Second, the first filter element 21 and the second filter element 22 are equal in length, and the shell member 1 can be used upside down after a period of use, thereby improving the utilization rate of the filter element 2.

3. When using maintenance, the filter element 2 and the functional filter medium 3 can be separately replaced depending on the filtration state, and the use cost can be greatly reduced compared with the conventional single-turn design.

Fourth, the functional filter material 3 is separately filled. Therefore, different filter particles can be selected according to requirements, or even mixed filter particles can be added, which has the effects of increasing product variation and functionality.

5. After the fluid passes through the functional filter medium 3, it will finally flow out through the second opening 22 through the second filter element 22, so that the fluid is not stained by the functional filter medium 3, and has the ability to maintain filtration quality. Work effect.

Referring to FIG. 3, FIG. 4 and FIG. 5, a second preferred embodiment of the filter having the combined filter material of the present invention is substantially the same as the first preferred embodiment, and includes a shell member 1, a filter element 2, and A functional filter material 3.

The housing 11 of the case member 1 has a tubular body 111 for accommodating the filter element 2 and the functional filter material 3, and a cover 112 for respectively covering opposite ends of the barrel 111, and two The annular baffle 113 is disposed between the tubular body 111 and the casing cover 112 and limits the functional filter material 3 to the tubular body 111. The first opening 13 and the second opening 14 are respectively disposed on the shell covers 112.

The partitioning plate 23 of the filter element 2 has a base wall 231 with an outer peripheral edge abutting against the inner circumferential surface of the tubular body 111 of the casing 11, and is disposed around the base wall 231 and accommodated by the functional filter medium 3 Through hole 232.

Therefore, the second preferred embodiment can achieve the same advantages and functions as the first preferred embodiment, and the base wall 231 of the partitioning plate 23 can abut against the inner circumferential surface of the tubular body 111. The stability of the filter element 2 in the housing 11 is increased without sloshing for easy disassembly, and the utility of reducing assembly and maintenance time is also provided.

The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, that is, the simple equivalent changes and modifications made by the patent application scope and patent specification content of the present invention, All remain within the scope of the invention patent.

1‧‧‧Shell

11‧‧‧Shell

111‧‧‧

112‧‧‧Shell cover

113‧‧‧Baffle

12‧‧ ‧ room

13‧‧‧First opening

14‧‧‧Second opening

2‧‧‧ filter element

21‧‧‧First filter

22‧‧‧Second filter

23‧‧‧ partition board

3‧‧‧Functional filter media

Claims (10)

A filter having a combined filter material, suitable for filtering a fluid, and comprising: a shell member comprising a hollow shell, a chamber located inside the shell, and spaced apart from the shell and respectively communicating a first opening and a second opening of the chamber; a filter element disposed on the housing and located in the chamber, and including a first filter element, a second filter element, and a first filter element a partition plate between the second filter element, the first filter element has a porous hollow tubular shape and an inner peripheral surface thereof communicates with the first opening, the second filter element has a porous hollow tubular shape and an inner peripheral surface thereof communicates with the second And a functional filter material, in the form of particles, filled in the chamber and located between the filter element and the housing; wherein the fluid flows in through the first opening, passes through the first filter element and passes through After the functional filter material, the second filter element flows out through the second filter element. The filter having a combined filter according to claim 1, wherein the functional filter is selected from the group consisting of activated carbon, medical stone, ceramic powder, or a combination thereof. The filter with a combined filter according to claim 1, wherein the first and second filter elements of the filter element are respectively polypropylene (PP) meltblown filter elements. The filter with a combined filter according to claim 1, wherein the first and second filter elements of the filter element are respectively fixed on opposite end faces of the partition plate. A filter having a combined filter according to claim 1, wherein the first and second filter elements of the filter element are of equal length. The filter with a combined filter according to claim 1, wherein the partition plate of the filter element has a base wall with an outer peripheral edge abutting against an inner peripheral surface of the casing, and a plurality of surrounding holes are disposed on the base wall and provided The through hole of the functional filter material. The filter with a combined filter according to claim 1, wherein the shell of the shell has a barrel for accommodating the filter element and the functional filter, and a cover for covering the barrel. The first and second openings are respectively disposed on the barrel and the cover. The filter with a combined filter according to claim 7, wherein the housing of the case further has a ring disposed between the barrel and the cover and confining the functional filter to the barrel. Baffle. The filter with a combined filter according to claim 1, wherein the casing of the casing has a tubular body for accommodating the filter element and the functional filter material, and two opposite covers respectively The first and second openings are respectively disposed on the cover of the cover. The filter with a combined filter according to claim 9, wherein the shell of the shell member further has two bodies respectively disposed between the barrel and the shell cover and the functional filter medium is confined in the barrel body. Ring baffle.