JPH0444236Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a water filtration device that removes impurities from water through an ion exchange resin layer.

[Prior Art] Regarding a water filtration device that removes impurities from water through an ion exchange resin layer, for example,
As disclosed in Publication No. 67384,
The so-called so-called
Cartridge type water filtration devices have been known.

[Problems to be solved by the invention] However, in this known water filtration device, the filtration element is connected to an element receiver fixed to a partition plate so as to communicate the water collection chamber and the treatment chamber, and one end of which is connected to the element receiver. A porous cylindrical body detachably attached to the porous cylindrical body, a plug fixed to the lower end of the porous cylindrical body, a material support such as a wire mesh wrapped around the outer periphery of the porous cylindrical body, and a material support such as a wire mesh wrapped around the outer periphery of the porous cylindrical body. It is composed of a tangled body of fibrous and granular ion exchange resin pre-coated on the outer periphery, so in the event of a decrease in overperformance,
It was necessary to remove the porous cylinder from the element receiver and replace the entire set with a new one, which resulted in heavy element wear and was uneconomical.

Therefore, instead of such a pre-coated filter element, for example, as disclosed in Japanese Utility Model Application Publication No. 60-74789, an ion exchange resin is used in the gap formed by arranging porous cylinders in a double tube shape. Attempts have been made to install so-called filling-type filter elements that can be filled and reused, but all conventional fill-type filter elements are non-cartridge type, and do not require backwashing, etc. Therefore, it could not be adopted for a simple filter device that does not have the same structure.

The present invention was developed as a result of focusing on the above-mentioned problems and conducting intensive studies from various angles in order to solve the problems.

[Means for Solving the Problems] That is, the water filtration device according to the present invention is provided with a partition plate installed below the partition plate so as to divide the interior of the treatment tank having a closed structure into upper and lower parts. a treatment chamber and a water collection chamber formed above; a plurality of overflow elements removably suspended from the partition plate; a water supply port to be treated opened to the treatment chamber;
and a treated water outlet opened to the water collection chamber,
and a first porous cylinder whose upper end is fixed to the partition plate so as to communicate the water collection chamber and the processing chamber, and a bottom plate which is fixed to the lower end of the first porous cylinder. , a second porous cylinder disposed within the first porous cylinder to form a material filling part, a blind plate fixed to the lower end of the second porous cylinder, and an upper end of the second porous cylinder. a flange fixed to the upper end of the second porous cylinder so as not to block the opening and detachably mounted on the partition plate so as to close the upper end opening of the material filling part; a bottomed porous retainer inserted;
The porous retainer is characterized by comprising an ion exchange resin filled in the porous retainer.

[Example] Hereinafter, an example will be described based on the drawings. In FIG. 1 which is a front view and FIG. 2 which is a Z-Z cross-sectional view of FIG. 1, 1 is a processing tank, and 2 is a partition plate. , 3 is a processing chamber, 4 is a water collection chamber, and 5 is a filter element. The processing tank 1 is provided in a sealed structure.

Specifically, in the processing tank 1, the upper partition plate 2 is sandwiched between the flange 7 of the processing tank main body 6 and the flange 9 of the lid body 8, and these are fixed with bolts, and the processing chamber 3 is formed below the partition plate 2. At the same time, a water collection chamber 4 is formed above. A treated water supply port 10 is opened in the processing chamber 3, and a treated water outlet 11 is opened in the water collection chamber 4.

On the other hand, the over-elements 5 are suspended from the partition plate 2 and arranged at high density so as to be located in large and small circles concentric with the processing chamber 3. In Figure 3,
Although the porous element 5 is enlarged, this element 5 has a first porous cylindrical body 12 whose upper end is welded to the partition plate 2 so as to communicate the water collection chamber 4 and the processing chamber 3.
A second porous cylinder 14 is arranged so as to form a material filling part 13 therein.

The second porous cylinder 14 has a flange 15 welded to its upper end and fixed to the partition plate 2 with bolts 16, and a blind plate 17 welded to its lower end. The flange 15 is fixed so as not to close the upper end opening of the second porous cylinder 14. In addition, the first porous cylinder 1
A bottom plate 18 is welded to the lower end of the blind plate 1.
7 is positioned in a light contact or non-contact state with respect to the bottom plate 18.

Furthermore, a porous retainer 19 is inserted into the material filling section 13. The porous retainer 19 is inserted so that the porous bottom 20 faces downward, as shown in FIG. Furthermore, this retainer 1
9 is filled with fibrous ion exchange resin 21 (generally called ion exchange fiber). The ion exchange resin 21 has a diameter of 5 to 300μ,
The length is 0.1-1 mm, and it is filled with 0.05-0.6 g/cm ³ . The porous retainer 19 is made of a wire mesh, and is provided with openings that can prevent the ion exchange resin 21 from being transferred to other locations.

According to this filtration device, it is possible to supply the water to be treated into the treatment chamber 3 from the water supply port 10 and discharge the excess water to the outside of the treatment tank 1 from the water outlet 11. However, at that time, impurities contained in the water to be treated that is supplied from the water to be treated supply port 10 into the processing chamber 1 are removed by the ion exchange resin 21 of the over-element 5.

The water to be treated supplied into the processing chamber 3 flows into the material filling part 13 through the holes 22 of the first porous cylinder 12 and the holes 23 of the bottom plate 18, and then flows into the material filling part 13 through the holes 22 of the first porous cylinder 12 and the holes 23 of the bottom plate 18.
The water flows into the cylinder through the hole 24 and flows into the water collection chamber 4. Therefore, the first porous cylindrical body 12 functions as a coarsely apertured filter and can prevent clogging of the finely apertured porous retainer 19 for a relatively long time.

In addition, when the performance of the over-element 5 decreases, it is necessary to replace the ion exchange resin 21 of the over-element 5, but in that case, the lid body 8
After removing the bolts 16, the second porous cylinder 14 can be taken out from the first porous cylinder 12, and the porous retainer 19 can also be taken out and transported to another location. After taking out the second porous cylinder 14 and the porous retainer 19, the second porous cylinder 14 and the porous retainer 19 can be filled with new ion exchange resin 21 and reattached to the partition plate 2. In this way, according to this device,
Substantially only the ion exchange resin 21 needs to be replaced, and therefore, the economic effect is large.

An embodiment of the present invention has been described above, but in the present invention, the ion exchange resin can be in a form other than fibers, such as powder or granules, and these may be individually Alternatively, suitable materials may be mixed and used, and further, they may be mixed with a resin in the form of fibers, powder, or particles that do not have an ion exchange group.

Further, although it is preferable to provide the hole 23 in the bottom plate 18, it is not necessary to provide the hole 23, and a hole for inserting the lower end of the second porous cylinder 14 may be provided in the bottom plate 18 through the hole or at a predetermined depth. Note that the first and second porous cylinders 12 and 14 can be provided not only in circular shapes but also in other shapes, and correspondingly, the porous retainer 19 can also be provided in various shapes. 1st
In the figure, 25 is a lug, and 26 and 27 are water impingement devices, respectively.

[Effects of the invention] As described above, according to the invention, regarding a simple water filtration device that does not perform backwashing etc., clogging of the porous retainer can be prevented for a relatively long time, and when the overcapacity is reduced, It is possible to replace substantially only the ion exchange resin by attaching and detaching the second porous cylinder, which has a great economical effect.Moreover, it is possible to install over-elements in a high density in the processing chamber, and over-area (surface area of over-layer) is achieved. ) large half-cartridge type water filtration device is obtained.

[Brief explanation of the drawing]

Figure 1 is a front view of the water filtration device, Figure 2 is a Z-Z cross-sectional view of Figure 1, Figure 3 is an enlarged view of the mounting part of the filter element, and Figure 4 is a perspective view of the porous retainer. . 1... Processing tank, 2... Partition plate, 3... Processing chamber,
4... Water collection room, 5... Over element, 10...
Treated water supply port, 11... Treated water outlet, 12...
...First porous cylindrical body, 13... Material filling part, 14...
Second porous cylinder, 15... flange, 17... blind plate, 18... bottom plate, 19... porous retainer, 20
... Porous bottom, 21 ... Ionic exchange resin.

Claims (1)

[Scope of utility model registration request] A partition plate is installed to divide the inside of the treatment tank with a closed structure into upper and lower parts, and a treatment chamber formed below the partition plate and a water collection chamber formed above the partition plate, which can be attached to and detached from the partition plate, are installed. a plurality of filtration elements suspended in the water collection chamber, a treated water supply port opened to the treatment chamber, and a treated water outlet opened to the water collection chamber; A first porous cylinder whose upper end is fixed to the partition plate so as to communicate the chamber and the processing chamber, and a bottom plate which is fixed to the lower end of the first porous cylinder to form a material filling part. a second porous cylinder disposed within the first porous cylinder; a blind plate fixed to the lower end of the second porous cylinder; a flange fixed to the upper end of the porous cylinder and removably mounted on the partition plate so as to close the upper end opening of the material filling part; and a bottomed porous retainer inserted into the material filling part. , and an ion exchange resin filled in the porous retainer.