JPH1190427A - Ion-exchange resin column for dionizer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily exchange ion exchange resin by housing the ion exchange resin in a bag or a container made of a material which can be permeated with water and does not pass the ion exchange resin through, inserting a strainer into the bag or the container without gap, and forming a water-pouring inlet and a water-discharging outlet connected with the strainer n the tank head. SOLUTION: A water-pouring inlet 3 is opened in one side face of a tank head 2 which covers the aperture face 12 in an upper part of a tank 1 and a water discharge outlet is opened in another side face on the opposite to the former side face. The water-pouring inlet 3 is connected with a distributor 8 for distributing poured water and the water-discharging outlet is connected with a strainer 7. Moreover, ion exchange resin 6 is housed in a bag 5 of mesh fabric made of fibers of nylon or polypropylene or cotton which is penetrated with water but does not pass the resin 6 through. After distribute by the distributor 8, raw water such as municipal water is introduced into the bag 5 through the water-pouring inlet 3, deionized or softened by the resin 6, and after fine dust are filtered by being passed through the strainer 7, the resultant water is discharged out through the water-discharging outlet 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ion exchange resin tower of a small-sized pure water producing apparatus for producing pure water.

[0002]

2. Description of the Related Art Conventionally, ions in a pure water producing apparatus (hereinafter simply referred to as "apparatus") for producing a relatively small amount of pure water using an ion exchange resin (hereinafter simply referred to as "resin"). In many cases, the exchange resin tower fills a granular resin as it is in a cylindrical tank formed by winding a synthetic resin sheet such as FRP or the like, and obtains pure water by passing city water or the like into the tank.

[0003]

However, in the above-mentioned conventional small tank, the shape of the upper opening 13 is smaller than that of the body 14, as shown in FIG. To replace the resin after a certain period of use,
It is necessary to remove the tank head 2 and then turn the tank upside down to discharge the resin together with the water. However, it is extremely troublesome to perform this manually, and there is a drawback that it requires power.

[0004] For example, the most widely used resin 1 in Japan
The capacity of a tank containing 0L is about 14L, and if it is filled with water, the weight will be around 15kg, so handling the tank by hand requires considerable power and is dangerous from a safety point of view. Becomes Furthermore, in the case of a tank for resin 20L, handling becomes more difficult.

After the old resin is taken out, a funnel 9 is required to fill with a new resin or a regenerated resin. To use the funnel, as shown in FIG. Alternatively, as shown in FIG. 3C, it is necessary to fill the resin while degassing and depressurizing from the degassing port 12 using a special tank head provided with a resin injection port 10 opened upward. It was annoying and time-consuming work. For these, it is naturally easy to remove the resin by using a pump. However, preparing pumps and other equipment to replace the resin once a month or once every few months is a problem for all users. Is not always economical for

Still another problem is that, in the conventional tank, the filled resin is directly deposited in the tank in a granular state. Therefore, after draining water for replacement, the resin spreads on the inner wall of the tank. The drawback is that it is not easy to take it out, and there are many users who are dissatisfied with it.

[0007] As described above, the disadvantages of the conventional tank are that the tank is almost exclusively manufactured by two major foreign manufacturers whose production volume is overwhelmingly large, and the cost is low. This is largely due to the fact that manufacturing equipment manufacturers have imported this and installed it as it is to domestic users, but nevertheless, domestic users can use it without questioning the above disadvantages. That is the current situation. It is an object of the present invention to improve the conventional ion exchange resin tower having such a drawback and to provide an ion exchange resin tower capable of easily performing resin exchange.

[0008]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides an ion exchange resin tower having a tank shape.
The upper opening area is almost equal to or slightly larger than the body, and the resin to fill the tank is made of a material that allows water to pass through but does not allow the resin to pass through. The resin can be easily taken out of the tank together with the bag or the container by storing it in a bag made of synthetic resin fibers fastened by a string or the like or a resin-molded container provided with a strainer insertion opening in the lid.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings schematically showing an embodiment. In FIG.
The upper opening surface 13, the body portion 14, and the bottom surface 15 of the tank made of P resin or the like are cylinders having the same dimensions. Numeral 2 is a tank head which covers the opening surface of the upper part of the tank, and a water inlet 3 is opened on one side thereof, and a water outlet 4 is opened on a side opposite to this, and the water inlet 3 is used for water diffusion. The outlet 4 is connected to a strainer 7 for filtering dust. Reference numeral 5 denotes a mesh-woven bag made of fiber such as nylon, polypropylene, or cotton, which allows water to pass through but does not allow resin to pass through, and stores an ion exchange resin 6 therein. Note that the tip of the strainer 7 is inserted into the bag 5, and the opening 11 of the bag 5 is fastened together with the strainer 7 with a string or the like so as to be easily opened and closed.

[0010] With this configuration, raw water such as city water that has entered through the water inlet 3 is diffused by the distributor 8, flows into the bag 5, and is purified or softened by the resin 6. After the fine dust is filtered through the strainer 7 and the like, the fine dust is discharged to the outside as pure water or soft water from the water outlet 4.

FIGS. 2 (A) and 2 (B) show another embodiment in which the strainer 7 in FIG. 1 is not used. In this embodiment, water from the water inlet 3 also passes through a distributor 8. After entering the rear bag 5 and being purified, it is taken out from the tank bottom in a vertical or horizontal direction.

FIG. 3 (A) is a so-called channel in FIGS. 2 (A) and 2 (B), in which raw water passes through the interface between the bag and the inner wall surface of the tank and goes directly to the outside depending on the material of the bag 5. In order to prevent a ring and ensure that the raw water flows into the bag, the distributor 8 is simultaneously wrapped around the opening 11 of the bag and fastened with a string or the like.

The container of the ion-exchange resin 6 is not limited to a bag. For example, as shown in FIG. 3B, a number of small holes 17 through which the resin does not pass are provided on the peripheral wall, and a strainer is provided on the lid. A resin-formed cylindrical container 5 ′ having a strainer insertion port 16 into which the nozzle 7 can be inserted without any gap may be used.

[0014]

As described above, in the ion-exchange resin tower of the apparatus of the present invention, the width of the upper opening surface 13 of the tank is increased by the body portion 14.
It is almost the same as or slightly wider, and the ion exchange resin is stored in a bag or container made of a material that allows water to pass but does not allow the resin to pass, and the upper part of the bag or container can be easily opened and closed. Therefore, when the resin is replaced, the resin can be taken out of the tank together with the bag, and there is no need to turn the tank upside down, making the operation extremely easy, and therefore the resin sticks to the inner wall like a conventional tank. Therefore, there is no trouble to remove it.

[Brief description of the drawings]

FIG. 1 is a schematic view of an embodiment of the present invention.

FIGS. 2A and 2B are schematic diagrams of another embodiment.

FIG. 3 (A) is a schematic view of still another embodiment,
(B) is a perspective view of the container filled with the ion exchange resin.

FIG. 4A is a schematic view of a conventional ion exchange resin tower,
(B), (C) is a diagram showing a conventional ion exchange resin filling method

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Tank 2 Tank head 3 Water inlet 4 Outlet 5 Bag 5 'Container 6 Ion exchange resin 7 Strainer 8 Distributor 9 Funnel 10 Resin inlet 11 Bag opening 12 Deaeration opening 13 Upper opening surface 14 Body 15 Bottom 16 Strainer Insertion hole 17 Small hole

Claims (2)

[Claims] 1. A cylindrical tank (1) filled with an ion exchange resin, a tank head (2), a strainer (7),
In the ion-exchange resin tower of the pure water production apparatus provided with the distributor (8), the size of the upper opening surface (13) of the tank is substantially equal to or slightly wider than the body (14), and Ion exchange resin (6)
It is stored in a bag (5) or a container (5 ') made of a material that allows water to pass but does not allow the ion exchange resin to pass through, and a strainer (7) is inserted into the bag or the container without any gap. An ion-exchange resin tower for a pure water production apparatus, comprising a water inlet (3) and a water outlet (4) connected to a strainer (7). 2. Without using a strainer (7),
Water outlet (4) or water inlet (3) on tank bottom (15)
The ion-exchange resin tower of the pure water production apparatus according to claim 1, wherein: