JPS6335837Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a cartridge filter for a water purifier for purifying water.

In the past, various water purifiers have been put into practical use for the purpose of obtaining clean water by removing iron, residual chlorine, and other foreign substances that enter the water supply, as well as the unpleasant odors and tastes that arise from them. There is. In these water purifiers, adsorbent powder or granular activated carbon (hereinafter collectively referred to as "conventional activated carbon") is widely used as a filter.

However, conventional activated carbon has had handling problems in that activated carbon tends to flow out or come off when used as a filter. In addition to the lack of adsorption capacity due to the small specific surface area and the high contact resistance (pressure loss) with water, which causes clogging, there is also a pressure loss in the part of the activated carbon packed bed where the activated carbon has fractured or flowed out. This method has a disadvantage in that it tends to cause so-called water channeling, in which untreated water passes through areas where the water has decreased. For the reasons mentioned above, the structure of the water purifier has become complicated and large in size.

The present invention solves the above-mentioned problems and drawbacks, thereby simplifying and downsizing the structure of a water purifier and providing a removable cartridge filter that can be operated efficiently. The present invention has a cylindrical fibrous activated carbon structure wrapped around a cylindrical hollow core having water holes,
This is a removable cartridge filter for a water purifier, in which a reinforcing body is provided on the outside and/or inside of the structure, and a net is further provided on the outside of the structure. The present invention will be explained based on the drawings.
Figure 1 is an overall perspective view of the cartridge filter.
Figure 2 is a sectional view of the cartridge filter, Figure 3 is a cross-sectional view of the cartridge filter.
The figure is a partially enlarged view of FIG. 2. FIG. 4 is an overall view of the water purifier, and FIG. 5 is a sectional view of the water purifier showing the state when a cartridge filter is installed. In the figure, 1 is a cap, 2 is a filter, 3 is a reinforcing body, 4 is a net, 5 is a core, and 6 is a packing. The cap 1 and packing 6 seal the cartridge by adhesively bonding the filter 2, reinforcing body 3, net 4, and core 5 with a bonding material. The cap 1 can be made of metal or synthetic resin, and the packing 6 can be made of flexible material such as synthetic rubber or synthetic resin. Filter 2 uses fibrous activated carbon. As the reinforcing body 3, for example, synthetic resin paper or nonwoven fabric can be used to reinforce the filter 2. net 4
For example, a net made of metal or synthetic resin can be used to prevent deformation of the filter 2 and the reinforcing body 3. The center core 5 is a filter 2 using water pressure.
It is a skeletal structure material made of metal or synthetic resin, for example, and provided with water passage holes 10 for preventing the reinforcing body 3 from expanding inside. The water purifier consists of a lid 7 with a male thread, a body 8 with a female thread, and a cartridge filter holder 9.

The actual state of water treatment by a water purifier using the cartridge filter of the present invention will be explained based on FIG. First, as shown in the figure, pack the cartridge filter inside the water purifier body (6).
It is attached so as to be in close contact with the lid 7 and the holder 9.
Next, inject untreated water from port a of the water purifier equipped with the cartridge filter, and as it passes through filter 2 according to the arrow, iron, residual chlorine, and other foreign substances in the water can be removed without channeling the water. Cleaned water from which unpleasant odors and tastes are removed is discharged from b. In this case, if the fibrous activated carbon used as the filter 2 is treated with metal ions, such as silver ions, it is more effective to sterilize bacteria such as Escherichia coli present in the water.

This embodiment is just an example, and cartridge filters can be used in series or in parallel depending on the purpose of use, thereby making it possible to treat a large amount of water. Additionally, when conventionally using activated carbon as a filter, equipment is required to prevent the activated carbon from entering the treated water and channeling the water, whereas the present invention requires special equipment. It is also excellent in that it does not. Furthermore, when manufacturing a cartridge filter, the process can be simplified because the cap and packing, filter, reinforcing body, net and core can be adhesively bonded in one step.

In the present invention, the fibrous activated carbon used as a filter is cotton with an adsorption function obtained by processing polyacrylonitrile-based, cellulose-based, or pitch-based fibers in a conventional manner.
Activated carbon in the form of tow, string, woven fabric, web, felt, non-woven fabric, etc. Furthermore, fibrous activated carbon treated with metal ions, such as silver ions, can also be used to impart sterilizing properties. In order to reinforce the above-mentioned fibrous activated carbon and improve its shapeability and handling properties, for example, a non-woven fabric made of synthetic fibers is placed on one or both sides of the layered fibrous activated carbon and bonded using a method such as needle punching. Immobilized fibrous active structures can also be used.

[Brief explanation of the drawing]

Figure 1 is a perspective view of the cartridge filter, Figure 2 is a sectional view of the cartridge filter, Figure 3 is an enlarged view of the circular part in Figure 2, Figure 4 is the main body of the water purifier, and Figure 5 is A sectional view of a water purifier equipped with a cartridge filter, and FIG. 6 is a schematic perspective view showing an example of the core. In the figure, 1 is the cap, 2 is the filter, 3 is the reinforcing body, 4 is the net, 5 is the core, 6 is the packing, 7 is the lid, 8 is the body, 9 is the holding base, 10
is a water hole.

Claims (1)

[Scope of utility model registration request] A cylindrical fibrous activated carbon structure is wound around a cylindrical hollow core having water holes, and a reinforcing body is disposed on the outside and/or inside of the structure, and A removable cartridge filter for a water purifier comprising a net provided on the outside of the structure.