JPH082436B2 - Water purification system - Google Patents

Description

TECHNICAL FIELD The present invention relates to a water purification system suitable for purification of tap water.

[Conventional technology]

As household water purifiers, stationary type, faucet direct connection type, and undersink type are known. In these water purifiers, an adsorbent such as activated carbon or a combination of activated carbon and hollow fiber filtration membrane is used for purification. Is used.

[Problems to be Solved by the Invention]

However, in water purifiers filled with activated carbon, chlorine, which is a sterilizing component in tap water, is removed by activated carbon, so that purified water does not have a sterilizing ability, and reverse contamination due to infiltration of bacteria from the nozzle for purified water poses a problem. Become.

[Means for solving the problem]

The gist of the present invention is that the water purifier 1 arranged below the sink, the water faucet 2 arranged between the conduit of tap water and the inlet of the water purifier 1, and the water purifier connected to the outlet of the water purifier 1. A water purification system having a nozzle (3), wherein a water tap (2) has a switching valve (4), a safety valve (5), an inlet (10) communicating with a conduit of tap water, a first outlet (11) communicating with an inlet of the water purifier (1), and a water purifier (1). Second outlet 12 communicating with the intermediate portion between the outlet of the water and the nozzle 3 for water purification
And a stop state of tap water flowing into the faucet 2 by the switching valve 4, a communication state between the inlet 10 and the first outlet 11, and an inlet 10
And the communication with the second outlet 12, or the inlet 10 and the first outlet
It is in the water purification system capable of forming a communication state between the 11 and the second outlet 12.

Hereinafter, the water purification system of the present invention will be described with reference to the drawings.

FIG. 1 shows an example of the water purification system of the present invention, and the water purifier 1 is arranged below the sink 16. The water purifier 1 is composed of a container body, an adsorbent such as activated carbon, and a water purification cartridge containing a hollow fiber filtration membrane. The hollow fiber filtration membrane may be a known one such as polyethylene or polysulfone, and the activated carbon may be granular silver activated carbon.

The water tap 2 is located on the inlet side of the water purifier 1, and the movement of the switching valve 4 causes tap water to flow into the water purifier 1 and stop water flow. FIG. 2 shows an example of the faucet 2. The inlet 10 communicates with the tap water conduit 7, and the first outlet 11 communicates with the inlet of the water purifier 1. In a normal use state, the switching valve 4 closes the second outlet 12 so that the inlet 10 and the first outlet 11 are in communication with each other, and tap water is the inlet 10 → the first outlet 11 → the water purifier. It flows from the inlet of 1 → the outlet of the water purifier 1 → the nozzle 3 for water purification.

When the switching valve 4 moves to the right in the drawing from the state shown in FIG. 2 and the switching valve 4 comes into close contact with the inlet 10, the inflow of tap water into the water tap 2 is stopped. In the water tap shown in the figure, the inlet 10 communicates with both the first outlet 11 and the second outlet 12 while the switching valve 4 moves to the right or left, and the inlet 10 → the second outlet 12 → purified water A channel of the cleaning nozzle 3 is formed, and tap water containing chlorine flows into the water purifying nozzle 3.

The structure of the switching valve is not limited to that shown in FIG. 2, and as shown in FIG. It may have a structure.

The safety valve 5 is for detecting the pressure at the time of passing water to the water purifier to prevent the water purifier from being damaged. Inside the water tap 2, the part where the inlet 10 communicates with the first outlet 11 is connected. It is provided in. The operating pressure of the safety valve 5 is set to an appropriate value in consideration of the pressure resistance of the water purifier.

As the amount of water passing through the water purifier increases, the ability of the activated carbon to remove chlorine and the hollow fiber filtration membranes become clogged to lower the water purification capacity. At that point, a new cartridge for water purification is replaced. Therefore, it is preferable that the inlet portion 13 and the outlet portion 14 of the water purifier are connected by a removable joint such as a one-touch joint. Further, it is preferable that these joints are provided with automatic opening / closing valves in order to prevent water leakage from the pipes at the time of attachment / detachment.

A pipe 8 for tap water and a pipe 9 for purified water are connected to each of the inlet and outlet of the water purifier, but the space under the sink is effectively used, the workability of the plumbing work and the cartridge for water purification are performed. Considering workability at the time of replacement and the like, it is preferable that at least a part of each pipe is bundled and arranged in a substantially parallel state as shown in FIG. Normally, pressure-resistant hoses are used for these pipes, but these two hoses are bundled and a focusing body 15 such as a spring or a winding tape is arranged on the outer side of the hoses so that they are focused and parallel to each other. You can

〔The invention's effect〕

According to the water purification system of the present invention, tap water containing chlorine is introduced into the water purification pipe when water flow is stopped, so that there is little risk of reverse contamination from the water purification nozzle side. Further, since the water valve is provided with the safety valve, the water purifier can be used in a container having low pressure resistance, and the cost of the water purifier can be reduced.

In addition, the structure in which the inlet and outlet of the water purifier are connected with a removable joint makes it easy to replace the water purifier body, and the pipes connected to the inlet and outlet of the water purifier A part of the structure that is arranged in a state of parallel focusing can effectively use the space under the sink.

[Brief description of drawings]

FIG. 1 is a schematic diagram of an example of the water purification system of the present invention.
2 and 3 are schematic views of an example of a water faucet, and FIG.
The figure is a schematic view showing a focused state of the pipe. 1 ... Water purifier, 2 ... Water tap 3 ... Water purification nozzle, 4 ... Switching valve 5 ... Safety valve, 6 ... Switching lever 7 ... Tap water conduit 10 ... Water tap inlet 11 ... 1st outlet of hydrant 12 ...... Second outlet of hydrant 13 ...... Inlet of water purifier 14 ...... Outlet of water purifier 15 ...... Concentrator 16 ...... Sink

Claims (3)

[Claims] 1. A water purifier 1 arranged below a sink, a water tap 2 arranged between a conduit of tap water and an inlet of the water purifier 1, and a water purification nozzle connected to an outlet of the water purifier 1. A water purifying system having a water supply tap 2, a switching valve 4,
Safety valve 5, inlet 10 communicating with tap water conduit, first outlet 11 communicating with inlet of water purifier 1, and second outlet 12 communicating with intermediate portion of outlet of water purifier 1 and nozzle 3 for water purification And a state in which inflow of tap water into the faucet 2 is stopped by the switching valve 4, a state of communication between the inlet 10 and the first outlet 11, a state of the inlet 10 and the second
A water purification system capable of forming a communication state with the outlet 12 or a communication state between the inlet 10, the first outlet 11 and the second outlet 12. 2. The water purification system according to claim 1, wherein the inlet and outlet of the water purifier are connected by a removable joint. 3. A part of each pipe connected to an inlet part and an outlet part of the water purifier is arranged in a focusing parallel state.
Water purification system described.