JP2004298670A - Cartridge for ion-exchange resin - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cartridge for an ion exchange resin which facilitates exchanging and packing of the ion exchange resin and ion-exchange ability of the ion exchange resin can be made longer since the ion exchange resin packed in the cartridge is evenly used. <P>SOLUTION: The cartridge 1 which is packed with the ion exchange resin 10 and is removably housed into an outer cylindrical container 2 holding a space 6 in the inner side part and the inner bottom part of the outer cylindrical container 2, is mounted with a filter 7 for preventing the removal of the ion exchange resin within a bottom 3 in which a plurality of water inflow holes 4 (see Figure 2) are bored and a filter 11 for preventing the removal of the ion exchange resin within a removable cover 5 in which at least one water outlet 23 is bored, respectively. A water introducing path 14 of an opening and closing cover 12 of the outer cylindrical container 2 opens toward the space 6 and while the water outlet 13 of the removable cover 5 is isolated from the space 6, the water outlet communicates with a water lead-out path 15. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an ion exchange resin cartridge attached to a pure water supply device, which can be used by replacing an ion exchange resin.
[0002]
[Prior art]
Equipment that purifies tap water, industrial water, well water, etc. and supplies pure water includes pure filters such as a fibrous filter that removes solid impurities, activated carbon that absorbs organic matter, or ceramics, as well as an ion-exchange resin that adsorbs electrolytes. Elements for hydration are used. Since these elements are deteriorated in performance by being used for a long period of time, they are often made into cartridges and can be replaced. Above all, ion-exchange resins are granular solids and are expensive, so that the process of regenerating a cartridge and recovering it has been carried out.
[0003]
For example, the filter device described in Patent Literature 1 contains an ion exchange resin inside a cartridge. However, this apparatus is intended mainly for attaching and detaching the cartridge from the apparatus, and does not assume that the ion exchange resin is recovered and regenerated. Therefore, Patent Document 1 does not describe a specific means for recovering the ion exchange resin from the cartridge. The disclosed cartridge construction is not suitable for recovering ion exchange resins. Further, since the structure of the cartridge is not symmetrical with respect to the axis (see FIG. 4), it is inconvenient because the direction must be adjusted when the cartridge is stored in the housing.
[0004]
Patent Document 2 describes a cartridge type filter. This cartridge-type filter has a cartridge filled with ion exchange resin or the like. However, since the water inflow hole of the cartridge is at the upper part and the water outlet (the inlet of the water collecting pipe) is located at the center of the lower part, the lower part of the cartridge type filter is Poor contact between surrounding ion exchange resin and water. Therefore, there is a problem that the ion exchange capacity of the cartridge as a whole is reduced even though the ion exchange resin filled is not used on average and there is a resin having ion exchange capacity remaining.
[0005]
[Patent Document 1] Japanese Patent Application Laid-Open No. Hei 8-138081
[Patent Document 2] JP-A-10-038044
[Problems to be solved by the invention]
The present invention has been made in order to solve the above-mentioned problems of the conventional ion exchange resin cartridge, and the ion exchange resin can be easily replaced and filled, and the filled ion exchange resin can be used evenly. It is an object of the present invention to provide an ion exchange resin cartridge having a long-lasting ion exchange capacity.
[0008]
[Means for Solving the Problems]
The ion exchange resin cartridge of the present invention made to achieve the above object is filled with an ion exchange resin 10 as shown in FIG. The cartridge 1 is removably housed in the outer cylindrical container 2 while keeping a space 6 therein, and the ion exchange resin 10 is provided inside the bottom 3 having a plurality of water inflow holes 4 (see FIG. 2). A filter 7 for removing ion-exchange resin is mounted inside the detachable filter 7 in which at least one water outlet hole 13 is opened, and a filter 11 for opening and closing the opening and closing lid 12 of the outer cylindrical container 2. Is opened toward the space 6, and the water outlet 13 of the detachable lid 5 communicates with the water outlet path 15 of the opening and closing lid 12 while being isolated from the space 6.
[0009]
This cartridge 1 for ion exchange resin can be appropriately implemented by the fact that the plurality of water inflow holes 4 are widely scattered over the entire surface of the bottom 3.
[0010]
Further, it is preferable that one water outflow hole 13 is located at the center of the detachable lid 5.
[0011]
Furthermore, the filter 7 inside the bottom 3 and / or the filter 11 inside the detachable lid 5 can be suitably implemented if it can be freely attached and detached.
[0012]
It is preferable that at least a part of the cartridge 1 is transparent or translucent. Further, it is preferable that at least a part of the outer cylindrical container 2 is transparent or translucent.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.
[0014]
FIG. 1 shows an embodiment of a cartridge 1 for ion exchange resin to which the present invention is applied, and shows a use state of being housed in an outer cylindrical container 2. The cartridge 1 has a cylinder body covered with a bottom cover 3 and a detachable cover 5 and filled with an ion exchange resin 10. In the cartridge 1 of this embodiment, the cylinder main body is made of a transparent plastic, and the ion exchange resin 10 can be visually recognized from the outside. Inside the outer cylindrical container 2, a protrusion 20 is provided at the bottom, and a vertical rib (not shown) is provided on the inner periphery so as to follow the protrusion 20 according to the outer diameter of the cartridge 1. Therefore, the outer periphery of the cartridge 1 maintains a fixed position while maintaining the space 6 with respect to the inner periphery of the outer cylindrical container 2.
[0015]
As shown in FIG. 2, a ring 17 provided with a radiating hexagonal rib is fitted into the cylindrical body of the cartridge 1 at the lower end thereof, and the bottom cover 3 is screwed thereto. A filter 7 composed of a nonwoven fabric 8 and a stainless steel punching plate 9 is fitted into the inner concave portion of the bottom cover 3. The bottom cover 3 is provided with six holes 4 at equal intervals on the same circumference, and is positioned such that the six holes 4 of the bottom cover 3 fit into the space of the radiating hexagonal rib of the ring 17. A ring 18 provided with a rib also fits into the upper end of the cylinder main body, and the detachable lid 5 is screwed thereto. A filter 11 composed of a nonwoven fabric 8 and a stainless steel punching plate 9 is fitted into the inner concave portion of the removable cover 5. A single hole 13 having an opening area substantially equal to the six opening areas of the hole 4 is formed in the center of the removable cover 5.
[0016]
As shown in FIG. 1, the upper end of the outer cylindrical container 2 is screwed over the open / close lid 12 in a state where the outer cylindrical container 2 is stored. The opening / closing lid 12 is provided with a water introduction path 14 and a water outlet path 15. The water introduction path 14 is curved and vertical from a horizontal part which is a female thread, and opens toward the inner wall of the opening / closing lid 12. An external water supply pipe 24 is screwed into the female thread. The water outlet path 15 is curved from the vertical portion of the central projection 19 inside the opening / closing lid 12 to the horizontal portion of the female screw. A water supply pipe 25 is screwed into the female screw. The water introduction path 14 is provided with an air vent hole 23, and the operation button 22 can open and close the flow path.
[0017]
When the cartridge 1 is stored in the outer cylindrical container 2 and the opening / closing lid 12 is screwed, the central projection 19 hits the detachable lid 5 to hold down the cartridge 1, and the bottom projection 20 and a vertical rib (not shown) receive the cartridge 1. The water introduction passage 14 communicates with the space 6 between the outer periphery of the cartridge 1 and the inner periphery of the outer cylinder 2 via the inner wall of the opening / closing lid 12. The vertical portion of the water outlet path 15 at the central projection 19 matches the water outlet hole 13 of the detachable lid 5 and communicates with the inside of the cartridge 1. At this time, since the center projection 19 is in contact with the cartridge 1, the water lead-out path 15 does not communicate with the space 6 and is isolated.
[0018]
When raw water such as tap water is supplied from a water supply pipe 24 in a state where the cartridge 1 is housed in the outer cylindrical container 2, the raw water accumulates from the water introduction passage 14 in order from below the space 6. On the other hand, the raw water passes through the filter 4 through the hole 4 and the water level in the cartridge 1 gradually rises (see a two-dot chain line arrow). Therefore, the water passes through the water from the bottom evenly in contact with the ion exchange resin 10, passes through the water outlet 13, enters the water outlet 15, and is sent to the water supply pipe 25. At this time, since the six holes 4 of the bottom cover 3 are equally spaced around the periphery, the raw water passes through evenly and uniformly contacts all the ion exchange resins 10 filled in the cartridge 1.
[0019]
When it is time to replace the ion exchange resin, when the outer cylinder 2 is turned, the screw is loosened from the opening / closing lid 12 fixed by the water supply source pipe 24 and the water supply destination pipe 25, and the outer cylinder 2 comes off. Then, the cartridge 1 is taken out. If the ion exchange resin changes color due to deterioration of exchangeability, it can be visually recognized because the cylinder body of the cartridge 1 is transparent, and furthermore, if the outer cylinder container 2 is transparent, it can be visually recognized even during use. The removed cartridge 1 is replaced with a new ion exchange resin by removing the screw and opening the removable cover 5 to remove the ion exchange resin. At this time, the nonwoven fabric 8 of the filter can be easily replaced as needed.
[0020]
【The invention's effect】
As described in detail above, the ion exchange resin cartridge of the present invention has a structure in which raw water is uniformly drained from the charged ion exchange resin, so that the ion exchange resin is used evenly and lasts a long time. . Since the operation of attaching and detaching the cartridge to and from the apparatus is simple, the ion exchange resin can be easily replaced and filled. Instead of removing the entire ion exchange apparatus, only the cartridge needs to be removed and transported to the ion exchange resin recycling factory, so that maintenance work can be simplified and transportation costs can be reduced.
[Brief description of the drawings]
FIG. 1 is a partially broken sectional view showing an embodiment of an ion exchange resin cartridge to which the present invention is applied.
FIG. 2 is a perspective view of a main part of the embodiment of the ion exchange resin cartridge to which the present invention is applied.
[Explanation of symbols]
1 is an ion exchange resin cartridge, 2 is an outer cylinder container, 3 is a bottom cover, 4 is a water inflow hole, 5 is a removable cover, 6 is a space, 7, 11 is a filter, 8 is a nonwoven fabric, 9 is a punching plate, 10 is Ion-exchange resin, 12 is an opening / closing lid, 13 is a water outflow hole, 14 is a water introduction path, 15 is a water outlet path, 17 and 18 are rings, 19 is a central projection, 20 is a bottom projection, 22 is an operation button, and 23 is an operation button. An air vent hole, 24 is a water supply pipe, and 25 is a water supply pipe.

Claims (5)

A cartridge filled with ion-exchange resin, keeping a space inside and at the bottom of the outer cylindrical container, and removably housed in the outer cylindrical container, wherein the bottom of the bottom has a plurality of water inflow holes. An ion exchange resin retaining filter and an ion exchange resin retaining filter are respectively mounted inside a detachable lid having at least one water outlet hole formed therein, and the water introduction path of the open / close lid of the outer cylindrical container is provided as described above. An ion-exchange resin cartridge opened to a space, wherein a water outflow hole of the detachable lid is isolated from the space and communicates with a water outlet path of the openable lid. 2. The ion exchange resin cartridge according to claim 1, wherein the plurality of water inflow holes are widely scattered over the entire bottom surface. 3. 2. The ion exchange resin cartridge according to claim 1, wherein the one water outflow hole is located at a central portion of the detachable lid. The ion exchange resin cartridge according to claim 1, wherein the filter inside the bottom and / or the filter inside the detachable lid are detachable. The cartridge for an ion exchange resin according to claim 1, wherein at least a part of the cartridge is transparent or translucent.

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