JPH0721105U - Separable multi-stage filter - Google Patents

Abstract

(57) [Summary] [Purpose] Use several types of filter media with different life in a water purifier.
When the individual cassettes (containers) are packed and loaded, it is difficult to determine the replacement time of the filter material, and there is a problem in the water purification capacity and the economical efficiency. [Structure] A plurality of separable filtration cassettes can be stacked. [Effect] Since it is possible to replace only the filter material that has lost the purifying ability, the purifying ability can be efficiently maintained, which is very effective in terms of economy.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This device can be used for water and sewerage, drinking water, horticulture, hairdressing, food factory, cooking water, livestock, fishery, etc.

[0002]

[Prior art]

 Conventionally, several types of filter materials (activated carbon, ceramics, hollow fiber membranes, etc.) are put in one container and loaded into a water purifier.

[0003]

[Problems to be solved by the device]

 Most of the filter media have a porous structure, and impurities are attached to the pores to purify water. Therefore, if the holes are clogged with impurities, they will be clogged, and the purifying ability will be extremely reduced. Also, the period until the product cannot be purified (life, life) varies depending on the filter material. Therefore, if filter materials with different lifespans are put together in one container, it will still be necessary to replace them in accordance with the filter material with shorter life. There is a drawback in that the filter material that can be fully used is wasted, and that when it is replaced with a filter material that has a long life, the filter material that has already reached the end of its life will be lost, and the purification capacity of one container, and thus the entire water purifier, will decline. .

[0004]

[Means for Solving the Problems]

 Therefore, the present invention is designed to eliminate this drawback, and if this is explained with reference to the drawing (see FIG. 2), the filter media of the filtration device can be separated and stacked. . Although FIG. 2 shows a two-stage type case, the filter of the present invention is composed of a plurality of easily separable cassettes, and the same kind of single filter medium may be put in the plurality of cassettes. It is also possible to put multiple different types of filter media in each cassette.

[0005]

By doing so, the cassette of A and the cassette of B can be separated, and only the cassette of A 1 can be removed and only the filter medium in A can be replaced.

[0006]

【Example】

 Since the filtration cassette of the present invention can be stacked, it is formed by blow molding so that steps are formed around the upper and lower cassettes. If the same cassette as A is made and stacked, it can be used as a multistage filter. The material is polypropylene, polyethylene, ABS (acrylonitrile / butadiene / styrene resin).

[0007]

[Effect of device]

 Therefore, when a short-life filter medium (eg, activated carbon) is placed in the A cassette and a long-life filter medium (eg, ceramic) is placed in the B cassette, the filtration inside the A cassette will still occur. The material will clog faster and lose its purification ability. Therefore, if you remove only the cassette of A and replace only the filter in it, the purification capacity of the entire water purifier will be restored again. This makes it possible to replace the filter medium more easily and in a short time without wasting the filter medium in the B cassette. The fact that the filter material in the cassette of B is not wasted means that the replacement cost of the filter material is limited to that in the cassette of A. This is a great economic advantage. The case just described is for two types of filter media, but if the same cassette as A is made into a multi-stage filter cassette, several types of filter media can also be supported.

[Brief description of drawings]

1 is a plan view

FIG. 2 is a front view and a sectional view of the present invention.

[Figure 3] Bottom view

FIG. 4 is a front view and a cross-sectional view of a multi-stage filtration cassette in an embodiment (four-stage case).

[Explanation of symbols]

 A: Filtration cassette (top) B: Filtration cassette (bottom)

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical display location B01D 24/00 8925-4D B01D 29/08 530 B 8925-4D 540 A

Claims (1)

[Scope of utility model registration request] 1. A multi-stage filter capable of stacking separable filtration cassettes.