JPS6313831Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is a type that can be connected directly to a tap water faucet, and has the function of freely switching and discharging dechlorinated water, shower water, etc. that removes residual chlorine from tap water, with a simple operation. This relates to a small water purifier.

From a hygienic standpoint, tap water is required to contain at least 0.1 ppm of residual chlorine at the supply end, but in reality, a large amount of residual chlorine is present, and the chlorine odor can cause discomfort when drinking, especially in the summer. is giving. Therefore, in recent years, water purifiers for removing residual chlorine have come into use in restaurants, coffee shops, households, and the like.

These conventional water purifiers generally use granular activated carbon as a desalination material; for example, by filling a cylindrical container with granular activated carbon and passing tap water through the granular activated carbon layer, residual chlorine in the water is removed. However, it has the following drawbacks.

In other words, the particle size of granular activated carbon used in water purifiers is usually about 0.3 to 2 mm, so the dechlorination reaction is slow. The capacity of the container itself is relatively large. When the capacity of a water purifier is relatively large, it is not possible to connect it directly to a tap water faucet. The water purifier must be connected with piping such as a hose, so it is necessary to secure a place to install the water purifier, and the piping makes the area around the water purifier complicated.

The present invention solves the drawbacks of conventional water purifiers, and is compact and capable of removing residual chlorine with high performance and can be connected directly to tap water faucets. The present invention relates to a water purifier that also has a water flow switching function that allows the water flow to be switched arbitrarily.

The present invention will be explained in detail below based on the drawings.

FIG. 1 is a cutaway vertical cross-sectional view of an example of an embodiment of the present invention, in which activated carbon fibers 3 are filled in a hollow disc-shaped filling case 2 having a large number of water passage holes 1 in the upper and lower parts. A filling case 2 is housed in a hollow disc-shaped outer cylinder 4. The activated carbon fiber 3 is made by carbonizing ^and activating synthetic fibers such as acrylic fibers, animal fibers such as wool, and vegetable fibers such as cotton.
It is best to use a felt-like material with a basis weight of 500g. The activated carbon fiber 3 shown in FIG. 1 is formed by forming the felt-like activated carbon fiber into a donut shape,
This is packed in 6 layers. Such activated carbon fibers have an iodine value of 1.5 g/g or more, a specific surface area of 1000 to 1550 m ² /g, and an average pore diameter of 14 Å or more. In particular, the outer surface area of the activated carbon fibers is
1.5~2.0m ² /g, which is the outer surface area of granular activated carbon.
It is more than 100 times larger than around 0.01m ² /g.
Therefore, by using the activated carbon fiber as a desalination material, the filling capacity can be reduced to about 1/10 compared to the case where granular activated carbon is used.

The outer cylinder 4 can be divided into an upper outer cylinder 4a and a lower outer cylinder 4b by screwing or the like, and is configured so that the used activated carbon fibers 3 can be replaced together with the filling case 2. Further, a disc-shaped shower plate 6 having a large number of shower holes 5 is attached to the lower part of the outer cylinder 4, and an inner cylinder 7 having a tap water faucet insertion port 19 at the upper part is rotated in the hollow part of the outer cylinder 4. It is slidably inserted, and the inner wall of the outer cylinder 4 and the outer wall of the inner cylinder 7 are in close contact with each other to prevent water from leaking. As shown in FIG. 2, the inner cylinder 7 leaves only the lower end and is hollow, with a flow passage switching port 8 provided on the side sliding surface located in the upper hollow part, and a non-hollow part further below. A notched passage switching port 9 that communicates with the cavity, a notched passage switching opening 11 whose lower end is open without communicating with the cavity, and a notch that penetrates the cavity and the lower end on the side sliding surface located at The flow path switching ports 10 are attached at different angles. Note that the channel switching port 8 and the notched channel switching ports 9, 10, and 11 are also provided at symmetrical positions, and two locations each are provided.

On the other hand, as for the outer cylinder 4, by rotating the inner cylinder 7 or the outer cylinder 4 relatively to the side sliding surface 12 of the inner wall above the outer cylinder 4, as shown in FIG. By rotating the inner tube 7 or the outer tube 4 relative to the sliding surface 12 of the inner wall above the outer tube 4, the channel switching port 13 can be aligned with the notched channel switching port 9 or 10, respectively. By rotating the inner cylinder 7 or the outer cylinder 4 relative to the bottom sliding surface of the outer cylinder 4, a flow path can be formed that individually matches the notched flow path switching opening 10 or 11, respectively. A switching port 15 is provided. Note that these flow path switching ports 13, 14, and 15 are similarly provided at symmetrical positions, and are provided at two locations each.

Further, as shown in FIG. 1, a sealant 16 such as rubber is glued to the insertion port 19 of the inner cylinder 7,
When the insertion port 19 and the tap water faucet are directly connected, they can be firmly fixed by the sealing material 16. Further, a foam plate 17 made of sintered metal or the like which has an extremely small pressure loss due to the pressure loss of the shower plate 6 is attached to the lower part of the flow path switching port 15 described above, and a foam plate 17 is attached to the lower part of the inner cylinder 7 and A water outlet 18 is opened below the bottom sliding surface.

The water purifier of the present invention has the structure as explained above, and is used by directly connecting the insertion port 19 of the inner cylinder 7 to a water faucet.In this embodiment, the water purifier can be removed by rotating and sliding the outer cylinder 4. It allows you to switch between chlorinated water, shower water, etc. as you like. The usage pattern will be explained below.

First, when dechlorinated water is desired, the outer cylinder 4 is rotated and slid, and the flow path switching port 13 of the outer cylinder 7 is aligned with the flow path switching port 8 of the inner cylinder 7, and the notched flow path switching port of the outer cylinder 7 is 11 and the flow path switching port 14 of the outer cylinder 4 and the flow path switching port 15 are made to match. In this way, the other flow path switching ports are sealed by the sliding surfaces of the inner wall of the outer cylinder 4 and the outer wall of the inner cylinder 7, so that the flow of water flows from the upper part of the inner cylinder 7 as shown by the arrow in FIG. The tap water flows from the cavity of the inner cylinder 7 through the flow path switching ports 8 and 13 into the upper part of the outer cylinder 4, and then passes through the activated carbon fibers 3 to remove free chlorine in the water and dechlorinate it. Water flows into the inner cylinder 7 again through the flow path switching port 14 and the notched flow path switching port 11, and then flows out from the flow path switching port 15, through the foam plate 17, and from the outlet 18.

The dechlorinated water that has reached the lower part of the filling case 2 also tries to flow out from the shower hole 5 of the shower plate 6, but since the pressure loss of the foam plate 17 is extremely small due to the pressure loss of the shower plate 6, the dechlorinated water does not escape. Salt water preferentially flows out from the outlet 18.

Next, when a shower of tap water is desired, the outer cylinder 4 is rotated and slid so that the notched flow path switching port 9 of the inner cylinder 7 matches the flow path switching port 14 on the inner wall of the outer cylinder 4. In this way, the other flow path switching ports are sealed by their respective sliding surfaces in the same way as described above, and the tap water flowing from the upper part of the inner cylinder 7 as shown by the arrow in FIG. It flows down and flows into the lower part of the filling case 2 through the notched flow path switching port 9 and the flow path switching port 14,
The water then flows out from the shower holes 5 of the shower plate 6. Furthermore, when a normal flow of tap water is desired, the outer cylinder 4 is rotated and the flow path switching ports 8, notched flow path switching ports 9, 11, and flow path switching ports 13, 14 are sealed with their respective sliding surfaces. , notch flow path switching port 1
0 and the flow path switching port 15. In this way, the tap water flowing down from the upper part of the inner cylinder 7 as shown by the arrow in FIG. .

As shown in FIG. 6, when the operating position is set as above, the notched flow path switching port 10 also matches the flow path switching port 14, and the flowing sewage flows out from the flow path switching port 14 and flows into the shower hole of the shower plate 6. However, as described above, the pressure loss of the foam plate 17 is extremely smaller than the pressure loss of the shower plate 6, so dechlorinated water preferentially flows out from the outlet 18.

As described above, since the water purifier of the present invention uses activated carbon fiber, which has an extremely high reaction rate, as a desalination material, the capacity of the water purifier can be made small enough to be directly connected to a tap water faucet.

For example, one activated carbon single fiber with a diameter of 10 to 20 μm is
The outer cylinder is filled with felt-like activated carbon fiber with a capacity of ^100cm3 with a basis weight of approximately 200g per ^m2 , and 0.7ppm
When tap water containing residual chlorine was passed through the tube at a flow rate of 200/H, the residual chlorine in the treated water was 0.04 ppm.

In addition, the water purifier of the present invention can obtain shower water or ordinary running water at any time with simple operations, so it is convenient for washing relatively large dishes such as dishes by being directly connected to a tap water faucet.

Furthermore, conventional water purifiers have a drawback in that when the water purifier is stopped in use and the water flow is restarted, the treated water that is initially passed through the water contains common bacteria. This is due to the growth of bacteria inside the water purifier, especially inside the desalination material, while the water purifier is not in use.

As activated carbon fiber used in the water purifier of this invention,
For example, by using activated carbon fibers with metal silver deposited on their surfaces, it is possible to prevent the growth and outflow of these common bacteria.

For vapor deposition of metallic silver, a general method for vapor depositing metal on the surface of a base material may be applied as is.

That is, the activated carbon fibers are placed above the vacuum container, and metallic silver placed in a crucible or the like is heated below the vacuum container to generate metallic silver vapor, which is applied to the surface of the activated carbon fibers. It is caused to precipitate.

When depositing metallic silver on the surface of activated carbon fibers, if the deposition is too thick, the water permeability will be impaired and the dechlorination effect will be reduced, and if it is too thin, the sterilization ability and its sustainability will be reduced. The thickness is preferably in the range of 0.05 to 5 μm, more preferably in the range of 0.5 to 1 μm.

For example, 1 m ² of activated carbon fiber with a diameter of 10 to 20 μm
Metallic silver with a thickness of about 0.5μ is vapor-deposited on the surface of a felt-like activated carbon fiber with a capacity of 100cm ² and a basis weight of about 200g, and the activated carbon fiber is filled into an outer cylinder.
If tap water containing 0.7 ppm residual chlorine is passed through at a flow rate of 200/h, the water flow is interrupted for 24 hours, and then the water flow is restarted, the treated water after 10 seconds has a general bacterial count of 47.
The number of treated water after 1 minute is 10 particles/ml, which is the water quality standard of the Water Supply Law of 100 particles/ml or less, making it possible to obtain sanitary treated water. The amount of silver eluted is also small, at less than 0.01 ppm, and can be kept below the U.S. Public Health Service beverage standard of 0.05 mg/or less.

As explained above, the water purifier of the present invention can freely obtain dechlorinated water, shower water, etc. by simply rotating and sliding the outer cylinder or inner cylinder.
It can be used for a variety of purposes, and by using activated carbon fibers whose surfaces are coated with metal silver, it is possible to always obtain sanitary dechlorinated water.

Furthermore, since the water purifier of the present invention is small enough to be directly connected to a tap water faucet, there is no need to install the water purifier on a wall or sink, and there is no need to connect it with a vinyl hose.

[Brief explanation of the drawing]

Figures 1 to 6 are drawings showing embodiments of the present invention, in which Figure 1 is a cutaway sectional view of the water purifier, Figure 2 is an explanatory diagram of the inner cylinder, and Figure 3 is the outer cylinder. Fig. 4 is a flow path diagram for obtaining dechlorinated water, Fig. 5 is a flow path diagram for obtaining shower water, and Fig. 6 is a flow path diagram for obtaining normal sewage water. Show the diagram. 1...Water hole, 2...Filling case, 3...Activated carbon fiber, 4...Outer cylinder, 5...Shower hole, 6...
... Shower plate, 7 ... Inner cylinder, 8, 13, 14, 1
5...Flow path switching port, 12...Sliding surface, 9, 10,
11...Notch flow path switching port, 16...Sealing material, 1
7... Foam plate, 18... Water outlet, 19... Inlet.

Claims (1)

[Claims for Utility Model Registration] (1) The outer cylinder 4 containing the activated carbon fiber 3 has an insertion port 19 for a tap water faucet at the top, and the upper part is a hollow part and the lower part is a non-contact part. The inner cylinder 7, which is a hollow part, is inserted through the outer cylinder 4 so as to be rotatable and slidable relative to the outer cylinder 4, and the shower plate 6 is installed at the lower peripheral part of the outer cylinder 4, and at the lower part of the inner cylinder 7 which is inserted through the inner cylinder 7. An outflow port 18 is disposed below the bottom sliding surface of the outer cylinder 4, and a flow path switching port 8 is arranged on the side sliding surface located in the cavity above the inner cylinder 7.
On the side sliding surface located in the lower non-cavity part, there is a notched flow path switching port 9 communicating with the cavity, a notched flow path switching port 11 whose lower end is open without communicating with the cavity, and the hollow part and the lower end. and a notch passage switching port 10 through which the inner cylinder 7 and the inner cylinder 7
Alternatively, by relatively rotating the outer cylinder 4, the flow path switching port 1 matches the flow path switching port 8.
3, and by rotating the inner cylinder 7 or the outer cylinder 4 relative to the side sliding surface below the outer cylinder 4, a flow path switching port 14 that individually matches the notched flow path switching port 9 or 10, respectively. In addition, by relatively rotating the inner cylinder 7 or the outer cylinder 4 on the bottom sliding surface of the outer cylinder 4, a flow path switching port 15 is provided which individually matches the notched flow path switching port 10 or 11, respectively. By this, the inner cylinder 7
Alternatively, the water purifier is characterized in that the outer cylinder 4 is rotated and slid relative to each other so that demineralized water, shower water from tap water, and normal flowing tap water can be obtained respectively. (2) Activated carbon fiber 3 with metallic silver deposited on its surface
The water purifier according to claim 1, which is incorporated in the outer cylinder 4.